Oh look, yet another example of the players not jumping through the DM's hoops and getting shafted for it. What a shock. Note, not a chance that I randomly selected Sir Stephen. I'm automatically going to select sub-optimal candidates.
I'm entirely sure he didn't say that. I don't know where you are getting that sort of thing from.
Is it really that hard to pick up 6 1st level warriors in your game world? Really?
It would be pretty much impossible in mine. For one thing, I can't think of a time when I ever statted out an NPC as a warrior. For another, 2nd level is considered average in my game world. Pretty much everyone over the age of 25 is 2nd level something. It's probably 2nd level commoner; but it's second level.
If you wanted to hire people to fight for you, there would be significant problems.
1) Depending on where you are at, the majority of people might be serfs or slaves. It's illegal for them to hire on with you; you'd be stealing someone's property. The people who are free possibly out rank you, and in any event won't associate with you until you have improved your social status. Even where freemen are in the majority and peers abound, you'd still need a license from the crown to form a mercenary company or else if you were caught armed in the fields or on the roads you'd be treated as bandits. And the town gaurd wouldn't let you in town in all likelihood unless you were citizens of the town. But ok, supposing that is all taken care of, you've been officially recognized as the "Trouble's Omen Company", under Captain Garenthal and you want to hire some people.
2) Well, first you got to convince people to sign up with you. If they are already pro's, chances are they already work for someone else, and that someone else is probably higher rank than you and they've got a comparitively cushy job sitting in some fortress somewhere, drinking up grog, and thinking they are lucky as hell to have a job in peace time and not having to wander around half of Sartha getting footsore looking for work. And if it is wartime, then chances are you can't buy the off because the crown is paying them hazard pay and they are locked into a contract anyway. And in any event, the pro's usually will not sign on to fight anything uncanny. They're more than happy to shed free peoples blood, maybe some trouble with lesser servitors, fight it out on the field, with clerics looking on and a good chance that their surrender will be accepted, etc. But aberations, dragons, undead, and all that unnatural stuff - that's hero work and your money ain't worth their life thank you very much. Mercs don't fight things that just want to eat them. It would take a really stupid or down in their luck professional mercenary to sign on with a low reputation fly by night who is going down in some dark hole, and if you did find one you'd be wise to be asking questions about why he can't get better work. And even if you could find some good ones willing to hear you out, they won't take a 1 day contract anyway. Most will demand at least a month's pay in advance or the buy out of their current contract if they have one. Mercenaries generally aren't stupid, at least the officer types aren't.
3) Ok, so the pros are out even if they are available (it's not like mercenaries hang out in every town). Probably the smartest thing to do would be try to make a public appeal, 'round up a posse' as you put it. Trouble is, unless the monster is actually attacking the town, it's going to take a really high diplomacy check for anyone to see this as anything but your problem. Indeed, there is a good chance of a strong negative reaction if you tell them about the monster, for fear you'll provoke it into attacking the town. It's a -10 penalty to your diplomacy check to convince someone to risk thier life just to start with. You can possibly pull it off if you've got max diplomacy and some positive modifier like noble rank. The good news is that if you do convince people to help, you probably won't have to pay them and the ones most likely to help - Templars, City Guards - are going to be pretty compotent and very reliable.
4) Ok, so you can't hire the pros and you treated charisma like a dump stat, what do you do now? Well, with the promise of good pay, you might find a few willing to hire on with you. It takes some spreading some coin in the bars, hiring criers, and printing broadsheets to get the word out. Candidates will take 2d4 days to make up their mind and show up. Most will turn away as soon as they hear you are only planning to hire them for a day. Most willing to hire on are looking for one of two things and usually both - more money than they could otherwise get their hands on or else you to take them away from this little crap town so they can see the world. Everyone is going to demand a month's pay in advance. Some are going to want a share of the treasure. And these are going to be amateurs. You'll be dealing with a mix of farm kids looking to get away, people in debt looking to get out of it, apprentices who've ran away from their masters, assorted misfits looking for someplace to fit in, criminals looking for a way to go under cover, and possibly (if you have enemies) spies or assassins posing as hirelings. What you won't find is faceless NPC's looking to hire on for a days work and a handful of silver. That's just totally unreasonable. There is nobody like that. You'd have a easier time recruiting bandits to help you rob coaches, or pirates to plunder fat merchant ships. No body wants to hire on for extremely dangerous work against supernatural monsters with only a day's pay staked on the outcome. What's in it for them? How many times on average do you think someone does that before they are dead? And ok, so you do pony up the money, you aren't getting "1st level warriors". It's going to be a mixed bag of Brute d2's, Expert d2's, and a smattering of Rogue d2's and 1st level Fighters with the occasional ringer thrown in - that 3rd level rogue that's fallen for a party member, or that Rogue 1/Hunter 1 who is a spy/assassin working for the Diligent Men or some other local cult who just wants to cut your throats in your sleep an bring your scalps back to his boss in order to get promoted.
In general, this is the way I've handled things since I was a teenager running 1e games. It's a big deal to get to be name level and get followers. If it was just easy to hire up an army, well, who would care? Granted, I don't have 'name level' and automatic followers any more, but the generally idea is still there. So far, the current party has 1 hireling, an ambitious 15 year old apprentice clerk (1st level expert) whose master they killed in a duel. At one point, the party negotiated an agreement with a crime boss to help them with a job that got them some help in the form of 4 of her enforcers, but you don't want to end up oweing too many favors to The Painted Lady. There was some thought about hiring on a trio of dwarf brothers (ftr3's) for a few days, but negotiations broke down over liability insurance for the train of mules that the brothers had with them, so the brothers went on with their coal hauling business. At one point, the party was in position to acquire a heroic sailor as a retainer (4th level explorer), but they wrecked his boat, left him without a livelihood, abandoned him, and never did revenge his friend like he'd ask them to so he left with a bit of ill feelings. The party has their merc license, and the Captain of the company has a Knighthood know, so in normal circumstances they could probably hire a lot of people. But just at the moment a major war has broken out and all the mercs are locked into contracts, and all the able bodied non-mercs have been conscripted by the Despot and the King (depending on which side of the border they live on). Now, once peace breaks out, there are going to be a lot of able bodied men looking for work and at that point, maybe, at least until they mention catacombs, werewolves, undead witches, dragons, and oh yeah that archmage whose apprentice they just killed.
If I simply bough a scroll of Summon Monster 4, I would get EXACTLY what I asked for without any chance of being shafted.
That's a 4th level spell. Where do you think you are going to find a 7th level wizard with a scroll lying around he's willing to sell to strangers? In the whole Principality, population 140,000, there are only 2 arcane spellcasters of that level or higher - Master Adain who works, when he feels like it, for the His Highness the Despot, and Tarkus Duffay that Necromancer you've been looking for and who probably is trying to kill you. Do you think wizards who have pierced the 4th mystery just grow on trees and work as shop keepers? Do you think you can go ask to buy the equivalent of a RPG launcher and no body is going to worry about why you want it?
If I simply bought a wand of Mount
A wand? Where are you going to get a wand from? Wal-mart? A local Hedgemage might be convinced to sell you a wand of light or a wand of mage hand, but of mount? That's going to be special order, even if you can find someone that knows how to do it because while 5th level casters aren't unknown, they are pretty rare. Chances are its a journey of a couple days just to find one. Then you are going to need to wait another day for it to be readied and got the 750 or so silver peices to pay for it (half up front, half on delivery). Maybe you'd get a discount though if you are willing to under go a ritual of sacrifice and pay up the blood needed to power the thing. You might can get another discount if you can find someone who doesn't know the mount spell but wants to and who can craft a wand. In general, if you want wands, you are better off crafting them yourself.
None of this would be seen as unpredictable by my players. We established with the first few sessions that it was a gritty world, filled with evil, and that NPC's had personalities and agendas of their own. The world isn't 'out to get them'. Many NPCs have treated them very well. They've won fame, honors, rank and a measure of riches. But NPCs aren't simply stat blocks to be ordered around either.