Mine is M16A4 just because most skilled players use it.One time I was in an HQ then a guy on my team got 102 kills 17 deaths in backlot and i got 78 kills & 22 deaths!
My fav guns r. [Assault] M16, Ak, M4, G36C & n sometimes G3. [Sub] Uzi & P90. [Shotgun] M1014. [Snipers] M40A3, Dragunov & 50Cal. Thats da guns i like n use=]