Hello fellow weapon lovers! We are currently developing a first person shooting game, and I need your advice in order to make the ammo related mechanics in the game plausible, since I am at the end of my knowledge, and theres just too much information for me to filter out. So basically I want to introduce a couple of ammo types that can be chosen from with any normal assault rifle / LMG ( and 5.56 SMGs) The thing is that I have a clear function they have to fulfill, and I search the right bullet that fits best at that given description Also I am not sure which are the commonly used AR,Carbine,LMG - types, so far Ive got those, but do i miss an important one ? 5.56×45mm NATO 7.62×51mm NATO 7.62×39mm M43/67 So I would require 3 variants of each of those 3 - Standard FMJ (correct?) - Armor piercing I have no clue (7.62 pierce more than 5.56 by default however) - Hollow point ? (Causes a more dangerous wound, slowing the target over a long time, preventing health regeneration, have less armor penetration and less range due to slower travel speed) - Hollow point variant ? (Supposed to cause extra impact force, halting the target for 0.5s, have less armor penetration and less range due to slower travel speed) Does this make more or less sense ? Are there any special rounds that could fit in those roles ? It does not matter if they are only used very rarely. I mainly need names / for each round type. Armor piercing are those tungsten/Wolfram rounds ? Also I read about sabot being used in small arms aswell ? Where would they fit ? Is there anything really special you know about that would be interesting to have ? (I know about tracers and subsonic) I'd be really grateful for your time.