M.D. THE BEST MECH!
1.M.D. has an overpowered healing ability, similar to Salvors, but with some differences: 1. no radius, but longer range; 2. it's legendary, so its stats are better, but the price and time to get it are also higher.
2.I think many people underestimate M.D.'s ability, but after a heated firefight, you can heal yourself and your team. Why not? (:
3.Also, M.D. is very easy to access.
4.And the main advantage is that he’s very beautiful and cute <3