For a new high tech unit for the US could possibly be the AMOS. Advanced MOrtar System. Just Google search it. Its pretty cool. Maybe give it an upgrade similar to the commanche rocketpods too. Like a hish rate of fire that recharges every 30 seconds or so.
A new female hero for the GLA could be a women that can capture enemy infantry and vehciles. Maybe an anthrax shot too. Like a needle syringe type thing to kill in one hit. With a name like "Seductress" or something ... I think maybe she shouldnt be able to suduce black lotus, lol
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I'll think up some more stuff in a bit but thats all for now.
Judgment