The Field Manual says that T-100 "...is lower, lighter, with increased maneuverability" but in game it have very poor maneuverability compared to M2A1 Slammer, which is bigger (probably heavier) but have almost exceptional maneuverability (not to mention more powerful gun with higher rate of fire, ability to carry up to 6 soldiers and coaxial MG). It feels like config files were mistakenly swapped or something. :)

So, probably, maneuverability of T-100 Varsuk should be increased in order to meet it's description.