[quote=@Medjedovic]
- or do you want me to make a detailed CS and have large list of equipment and skills? 

[/quote]

I would recommend classes of weapons.  An assault rifle is basically a rifle for most intents and purposes.  M16s were more accurate in the Vietnam war for example but AK47s were slightly more powerful and thus balanced out.  In that case reliability was more of a factor.

Perhaps:
Pistol
Oversized dumbass pistols (*lol*)
Submachine gun
Assault rifle
Designated Marksman rifle
Light machine gun
Sniper rifle
Anti material rifle