just thoughts.

Grunts: Make them just grunts. Have a 6 man squad of grunts. Upgades could be

peons

needler

leaders:elite and deacon added to squad

Wraiths: Give them a 10% health boost. Make them a little faster and increase range a little.

Scarab: 5% health boost.

Banshees:Make them not as dumb after boosting. Like i will have boosted in 20 banshees and have to wait 3 seconds as the just sit there and dont attack units below them. Also make them better at firing and moving at the same time.

Ghost: 5% health buff. to low of health and to weak of an attack. But still two plasma cannons are weak anyway.

Vampires: Give them fuel rods. It would bring them up to par with the wolverines ability to fight non air units...if that made sense. What i mean is wolverines can rape anything. Giving vamps fuel rods makes them better at that

Honor Guard: Dual weild needlers.

Suicide grunts: get needlers if you upgrade to that at hall. 5 man squad.

Arby: hit towers in rage.