The Tac Rifle doesn't do much of any damage vs heavy armour on tanks, literally only outclassing like the auto rifle. It's also not hit-scan, and Patch's speed is only as high as it is to ensure he can outrun SBH effectively. He also dies the moment an Artillery or a Light tank looks in his direction, where as an LCG can take 8 shots straight to the chest from a Med before going down and even with their armour type they technically have the same armour as Patch vs. bullets.
Also doza actually does more damage to tanks/buildings than Mobius, and doza has a bonus vs Flak where Mobius doesn't.
Considering some of the massive advantages on the Chem Trooper (like not even having to aim), I think Farland is fine.
Sounding like random rage posts nowadays.
Also...the hell says Gunner is lackluster? Dudes the same speed as basic infantry and does more damage than a Medium tank. And the Carbine is actually really really strong with headshots.