p90

akm or sks

pistol (unknown)

Desert Eagle (The hammer and safety catch are quite similar.)

ak-12 or ak-15

KSP-45 ?

DSA SA58 FAL

Barrett M107

OBR 5.56

FN SCAR 20S

marlin lever action ?

pistol (unknown)

unknown

laser cannon ? or something similar (there's no official documentation for this weapon)

KRISS Vector