After a few games, the hw1 bombers need a damage buff of sorts. They struggle to kill subsytems, and are laughed at by any capital ships.
The vaygr infiltrators (and maybe marines?) can capture ships way too fast. Just did a few games, and the infiltrators swooped in an stole ships at alarming rates. Considering salvage corvettes only need one lacking to fail at ship capture, infiltrators could use a capture time decrease.
There are several ship clipping issues that occur. For instance, if a Kushan carrier is facing a large asteroid and is producing frigates, occasionally the frigates will pile up in one spot and be immovable until the carrier moves. Likewise, if a carrier is too close to a vaygr flagship or shipyard capital facility, the launching capital ships (rarely bcs) can clip into eachother and be stuck until the production ship is turned. Laser corvettes and some others will still clip into each other when docking with a support frigate as well.