Yipee, I finally found a way:
1-In [name of the weapon].CWeapon you should have something like:
Code:
o.Scale = 0.5
o.Pos = Vector:New(0.4,-0.5,-3)
o.Ang = Vector:New(0.15,0.2,0)
well turn
Code:
o.Scale = a
o.Pos = Vector:New(b, c, d)
o.Ang = Vector:New(e, f, g)
into
Code:
o.Scale = -a
o.Pos = Vector:New(-b, c, d)
o.Ang = Vector:New(e+3.14, -f, g)
(yumm, dual vampguns, vamp shotgun+RL, dual shovels...Here I come!)