Forum Discussion
The most noticeable balance issue I've seen so far is the GDI sandstorm. In fact, I would go as far to say that it's already become the meta for GDI games. The fast attack speed means it can out-class any other vehicle up to a Titan. Throw in the lack of strong infantry counters for it, and the absence of air units at low level play and it quickly becomes clear that it needs a balance patch.
The other balance issue I've noted, and is also being discussed in another thread, is the fact that you can use units like the GDI pitbull to cheese the game. Since the pitbull can move while attacking and you can only ever have one unit on a tile, you can simply move it back and forwards on a capture point, ensuring the enemy has a difficult time taking the point or even destroying the pitbull in general (as the other enemy unit can't fire while chasing after the pitbull)
Orca need more health they barely can't take a hit