On other thought i don't think L&L sherman and T34 tank riders have the same role, the former should be a tank destroyer and the latter a support tank, good against infantry and decent vs vehicles, hence i not agree with adding as replacing unit .
Medic truck - I always wonder what is the lock-down function good for? The truck heals without it anyway, it just need to stay still and don't move. Don't need to activate lock-down.About Sherman - as I like the model I agree with Paciat on this one: it is redundand unit and should be as reward unit in exchange for T34 Tank riders. I would like to see much rather some offensive ability instead of it. For example from top of my head:- Armored charge (2CP) - player active, cooldown, all vehicles receives +3 speed for 30sec. but also 1.2 received accuracy and 1.1 received damage- Steamroller (3CP) - player active, cooldown, all medium/heavy tanks receive 0.5 damage for period of 30sec. but also receive half speed- Close combat experts (3CP) - player active, cooldown, all tanks have 1.5 damage bonus when firing at close range for short period 20sec., but also deals 0.9 damage at medium range and 0.5 damage at long range- Armor fighting spirit (3CP)... from my concept - unit passive ability, all tanks now act as veteran sergeant of PE, giving all nearby surrounding infantry units 0.75 received suppression and 1.25 received experience