Hello! This is my second mod: Colt SAA in MGS V TPP
Now, with CapLagRobin's mod MGS 3 Major Ocelot and current FOB feature to play as Ocelot, you can now dual wield right weapon for any situation involving Ocelot)

Being a vertex edited model, this gun has a lot of noticeable geometry and texture warping

Of course you can use it in singleplayer, but there is no dual wield, yet....
Also, due to Tornado-6 construction expect this glitches:
1) animation clipping - there is no way to make it reload like real Colt SAA
2) cylinder might rotate oddly while shots fired
3)ironsights are nearly useless, due to Tornado's barrel being lower than axis of cylinder's rotation, it has some funky stuff going in settings of first person animation. 

I've done what i could to make it look close enough, funcion well and i understand, there is still room for perfection.

Special thanks to CapLagRobin for pftex edits provided