How much you want to track or how much detail you want to set it up is really up to you, we could write an entire game supplement on this. I would also probably throw in some RP opportunities to break up the fights so have things like innocent workers they can interact with and potentially help or interact with other non-combatants.
Indeed, I want something more than a string of combats and the battle isn't between Good and Evil. Just like in history, both factions sincerely believe they are the good guys. I was thinking about a few totally not-vikings putting a house on fire, while some people are inside. It might be the house of a family which, several years ago, rented a room to the rogue when the PCs were in the city.
Redwizard007 said:
Thats awesome. Whats your endgame? I'm assuming something like "vikings and elves band together to drive the giants back to (somewhere,) and PCs find a way to make that permanent.
I haven't put much thought about this yet. The PCs can surely attempt to have both factions (or, at least, significant elements of both factions) to band together, but it won't be easy. The jarl who thrower its lot with the frost giants is well respected and many elves of this city are kind of jackasses and will believe until the end that they can defeat both giants and totally-not vikings. It could work, however, as the PCs are well-respected by a few elves (who even tried earlier to enlist them to defend the city, but the PCs refuse for several reasons). It could work however, and, as the DM, I'm not going to decide otherwise, if the PCs play their cards carefully.
Another option would be that the PCs confront the jarl after the raid, either during the raid, or after, when the totally-not viking survivors are back home. The PCs could back a rival to the jarl, which is one NPC they like, and plead that the vikings spent so much of their blood to free themselves of the elves' shackles that it makes no sense for them to be vassals to giants.
So far, from the advice I got from previous posters, I got that it's better to focus on small, covert-up or commando stuff, than on the big battle. So I got these:
i) Objective 1 - burst open the Northern door to create a diversion and force elves to split their forces ;
ii) Objective 2 - destroy the
massive chain that blocks the access to the city port ;
iii) Objective 3 - find a way to get a certain map from the elven archives (this has nothing to do with the battle itself, but the PCs need that map. They might bargain with some of the saner elves to get it, however.
To make it more difficult, I'm probably going to force the PCs to split themselves between these objectives. The northern door is far from the port and they will have to fight their way up or down to regroup. It will also add tension, if they are still split when the giants arrive.