The game need more moving protection, while you can argue that every unit is defensive "Best defense is a good offense!"
But no, what zero-k needs is a PD (Point defense) for those pesky bombs and mortars attacking you while you attack.
Shmaybe a strider about 900 metal and would have the same ammo mechanic as the Felon.
Uses small lasers to zap those pesky mortar shots from the skys draining from an energy reserve that recharges slowly and can not be boosted in any way...
Like a shield but active and more mobile!
Add something new zk- this is my forth post on this stuff, at least one (Maybe?) is good enough for the game?!