GLA
Pros: 1. They have sneaky and creative ways on attacking
2. They don't need generators. No more losing power
3. They are fast they could go to places fast just in case you will raid or need troops ASAP.
Cons: 1. They maybe cheap but they are also so easy to destroy
2. They don't have counters for many tanks specially overlord
3. They maybe considered the weakest among the three teams.
USA:
Pros: 1. They have strong turrets and army
2. The vehicle can make drones to assist them and help them.
3. Their particle canon has the fastest recharge time
Cons: 1. They need really many air supply to get decent money
2. If their generators go down it will be a hard time
3. Some US Generals don't have tanks to fight tanks and made for air attacks
China
Pros: 1. Have strong tanks
2. Have strong nuke
3. Hard to counter
Cons: 1. Tanks aren't that cheap
2. Their black lotus can't do much (my opinion)
3. Their turrets ain't that productive like USA who can shut down tanks or like GLA who with their invisible turrets