Можно вот так... В чем трабла то?
Global HandWeapon = 0
Global Pistaled = LoadMesh("pistaled.nah")
HideEntity Pistolet
Global Aftomad = LoadMesh("aftomad.nah")
HideEntity Aftomad
Function ChangeWeapon()
If KeyDown(2) And HandWeapon <> 1 Then
HideEntity Aftomad
HandWeapon = 1
ShowEntity Pistaled
End If
If KeyDown(3) And HandWeapon <> 2 Then
HideEntity Pistaled
HandWeapon = 2
ShowEntity Aftomad
End If
End Function