you are not going to find many references on or about melee tactics or application in a game focused on ranged combat. the most likely reference but they had nether bayonets or rifles as OGL 3.5 is the default source is written for the time it was set in a archaic setting I do not know of any mention beyond that time period of setting the lack rules of implies the use educated us of intuition. D20 mentions it but no detail and doesn't mention readying against charges and Dragon star doesn't even have charging rules.
In Dragonstar you are looking for charging or counter charging in a campaign setting were charging dose not exist?
Well, after checking the Modern Reference Document, I'm going to say that my ruling stands (but, see below). Everything I've seen say that a 'modern' bayonet is more like a combat knife than a sword or spearhead. It can be taken off the weapon and uses as a knife and is more of weapon of last resort.
However, the one rule I can find online is someone homebrewed material for the d20 Pulp Heroes games:
Expanded Weapons Table, which says the following:
"With the bayonet fixed, the longarm becomes a double weapon-clublike at one end and spearlike at the other. A character can fight with it as if fighting with two weapons, but if the character does so, he or she incurs all the normal attack penalties associated with fighting with two weapons, as if using a one-handed weapon and a light weapon. If the bayonet is not fixed, treat as a Combat Knife."
So, I would say it
could be used like a spear but to do so is
very difficult. Davik would have a -4 non-proficiency penalty to try to set it against a charge and it wouldn't be able to be used in that way against creatures larger than himself. So, if a knight charges him on horseback, it won't be an effective choice, since the horse is considered Large even though the knight is Medium-sized.
Davik could
try to use it to set against a charge, but I wouldn't advise it. Regardless, it would only be effective against one zombie attacking him in one round not against multiple opponents.
The bayonet and his firearm's butt end would be more effectively used as a double weapon, as noted above.
A bayonet is a blade on a stick that shoots a spear is a blade on the end of a stick what is the difference other than shooting. they are parallel to the point of having the same game statistics. except the ability to slash
Is a bayonet the same as a spear that can slash?
Referring to a heavy firearm as 'a stick' is not a good counterargument. I may not be well-verse in gun lore, but I quite certain using a bayonet in such a manner would not be the same as wielding a spear. Thus, the non-proficiency penalty for him to try to attempt to use it to set against a charge.