My biggest gripe with this game so far is the lack of a casual 2v2 Skirmish mode. Personally, I like it when there are obstacles, map elements, and other things that change how a battle works. And frankly, I think this should have been a part of the game by the time it was released.
Another thing is the feeling of a lack of power when it comes to some upgrades. I haven't played the other races much, but I do know this about Orks. Their scavenging upgrade feels incredibly underpowered. Even if you managed to take out a full health battleship with full hull points, you'd barely get maybe 240 hull points back. Sure, that may sound great, but consider the fact that you have to avoid giving any damage to this ship, and that you also have to reduce an entire battleship's crew to zero. The more dakka upgrade, I feel, is incredibly weak. At most you're getting 7.5 dps at a single ship within about the same range as your cannons. Now, something I feel that could fix it is a fleet wide application of this upgrade. That way, it actually has some utility. Not saying it has to essentially be another set of weapons on your ship, just a way to deal with chasing escorts or badly damaged ships easier. I would bring up other examples, but since the release of the game got rid of progress I do not yet have the exact numbers on other upgrades.
Something I was also really excited for was the customization of Ork ships. I thought that this was one of the most interesting things about Orks, and that it actually helped a lot, allowing diversification of an otherwise very basic faction. It allowed us to make ships with very specific and refined uses, whereas in this game, there is a very thin selection roles that my ships can take. Also, it's just plain fun, if a ridiculously stupid idea, to attempt to beat someone with nothing but a few battleships stocked to the brim with fighters, and a couple of escorts. Or alternatively, a constant cascade of shells flying towards the enemy from a gas cloud 9000 units away (12000 if you use locked on, but why would you do that if you have reload?!). Really, customization was the soul of the Orks.
Something that isn't really a complaint, and more of a suggestion, is a generic campaign for all races. I'm sure that most people would appreciate there being a generic campaign for all the races, just to give a more interesting thing to do than fighting in controlled battles with nothing but some asteroids and gas clouds in the way. Although, if this is that "new campaign" that you guys are talking about, I suppose you can ignore this paragraph. Just a thought, any who.
Also, thanks for the "titan ships" introduced! Thought it would be neat to have some of those real big ships that you could only see in the campaign, and now I can!