Is there a priority system for the Vira units and Neg Voider? One problem I've noticed is that they all target the same unit for their heals, rather than spreading out their heals to all of the units that aren't at full. This makes SWBattles and Fion Drone Dump Site a little harder than I think they need to be. Maybe the healing units could prioritize turrets that aren't already getting healed, or heal the turrets closest to them first. That way the healers aren't healing one turret while the rest of the base goes up in flames.
Anyone else think the unit limit should be 60? This might just be me, but the unit limit, even at max, feels more like a constraint than a strategic challenge. You have an idea for a great base, then realize you're a few units over the limit. Maybe have it as a *very* expensive unlock to get another five units added to the limit?