ok i think the nerf on the mech is too harsh in terms of distance and time this is mainly because if i use a melee deck build and my mech is ranged most of the time it will be 900 units from me which will force me to get close to the mech at melee range which makes it useless to have a ranged mech if it isn't going to do any damage because of it, the same is true if my mech is melee and I go with rifle.
please take note on this facts, also remember that unlike the other engineer specs, the mech specs ONLY affect the mech and not any attributes, abilities, or passives of the engineer itself, making it dependent on the mech only