Played all night yesterday, had a legitimate blast. I've never been particularly great at shooters, but I'm always mildly obsessed with being a fighter pilot... all that Ace Combat seems to have paid off with the fighter combat for me. Especially rewarding to clear the skies on Hoth, as there's always some poor saps trying to camp on top of the hill who are easy pickings for a strafing fighter. Rebel scum once had three people up there at once... and all it took was one pass from my TIE Fighter to clear them off.
Spawning needs to be re-tooled, and they need to explain the rules for Rebels on Hoth a bit better/give incentives to actually go for them rather than try to rack up kills. Because Rebels CAN win (I've done it several times), but if both teams ignore the objectives then the Imps will win by default. If the Rebels actually try to hold the uplinks and focus down the AT-ATs when they're vulnerable? It can be hard for the Imperials to do much about it. The one thing as Rebels you should really be concerned about are the AT-STs, as those are about the only thing that can really push a group of Rebel troops back with relative ease. Carrying ion grenades and having good pilots in the sky can negate that, however. An X-Wing with a clear path can take out an AT-ST pretty quickly, and a pair of ion grenades should be enough to put them down.
Otherwise? Sit on turrets and keep trying to push back, making sure to keep the uplinks up and running. When the Y-Wings attack you hit the AT-ATs with everything you have: ions wreck them, as do fighters and turrets, and some of the power-ups can really put a dent in them (blaster cannons, smart rockets, and ESPECIALLY orbital strikes! Hang on to those for the AT-ATs!!!).
Curious to see what other guns/upgrades are available for the full version of the game. If there's any problem right now beyond spawns and people not knowing how to Rebel properly, it's that the jump-pack is silly good compared to nearly every other upgrade. Sorta removes some of the fun of customization when you actually only have the one slot to really make a decision on.