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I forgot to say, I went with:

Retrofits: Gun breech v2 (+13% RoF)/ Paint V2 (+8%camo)/ Filter system V2 (+Acceleration & engine HP)
Ammo: AP & HESH
Commander: Ioannis set up for camo/spotting/damage
Crew:
Driver: offroad driving/spin to win
Gunner: quick draw/sharpshooter
Loader: Rapid fire/Explosive shells

Also it does have: a very accurate gun, good camo, and decent gun depression.

I forgot to say, I went with:

Retrofits: Gun breech v2 (+13% RoF)/ Paint V2 (+8%camo)/ Filter system V2 (+Acceleration & engine HP)
Ammo: AP & HESH
Commander: Ioannis set up for camo/spotting/damage
Crew:
Driver: offroad driving/spin to win
Gunner: quick draw/sharpshooter
Loader: Rapid fire/Explosive shells

Also it does have: an accurate gun, good camo, and decent gun depression.