Oh wow, this is a really ambitious FPS game, color me impressed! Not sure what to make of the dream mechanic though, e.g. the countdown seems to dissolve the game scene but not immediately, so its not very clear. Some aspects of the game require just a bit more polish as it now gets in the way of gameplay e.g. objects getting in the way, destructible meshes getting in the way, dive feeling a little wooden, enemies being a little wonky (especially those bombers!).
There's a really nice feel to using the weapons, good job on those! Very detailed 3D modelling work too!