There is one particular thing I hate in crossfire: Gunboat class is absolutely useless.
Since the shields in the game are so weak, having two anti-shield forward cannons are pointless.
Then with 40000 armor, 25000 shield with no regens, every VHF has more hit point (with regens)! But obviously gunboats can't dodge too much fire compared with fighters.
And unlike cruisers and battleships, gunboats can be cruise-disrupted! Which makes them impossible to even escape.
I also hate the "perfect" balance for all capital ships in CF, I much more prefer the way discovery does in balancing.