Added ice background on first location

-Fixed position of alien detectors caused by new game update
-Brought back alien gun into testing chamber
-Brouth back alien gun for AER-14
-Slightly better visuals for AER-14
-For SOLO version now you has rifle, and not grenade launcher.

Valor hatch is no longer opened.

Some fixes, balance tweaks for the beggining

minor balance tweaks

I hate that one orange wire that is visible.