Silver Ranger - Really suck on hight rate server. The best is on a low rate server because of his fast attack.speed and also for the self buffs and for the Hight critical rate.
Phantom Ranger - Its good even on hight and low rate server. Its the best assist class ever, its true that he got low attack speed, HP, but you can feel his crit. on any car. is more than a DD.
Hawkeye - In my opinion if u want to play 1 vs 1 Howkeye is the most balance class ever.
Got perfect attackspeed, HP, crit rate and also P.attack.