Just downloaded the game, and it looks great! I can't wait for the finished version. Until then, here are a couple of issues I've noticed at the start:
1) If you decide to build your own base from scratch, it seems impossible to acquire a dropship or interceptor from the Aircraft Menu. This is not a problem if you build a hangar later, however -- only if you begin the game by configuring your own base.
2) Renaming Soldiers from the Aircraft/Assignment Menu is broken; if you rename the first soldier you've hired, it instead seems to rename the first soldier in the Hiring Menu instead, etc.