ufo 2.7.4 file - UFO: The Two Sides 2

Fixes, balance changes: tank rocckets storage space use 0.6 -> 0.3 alien fuel storage space use 0.025 -> 0.05 alien material storage space use 0.05 -> 0.075 heavy interceptor plating's armor 60 -> 50, speed -300 -> -100 terrain devastation penalty lowered for humans by about 25% Mars' supply ship will no longer get stuck if it's crashlanded. It will properly get repaired. Some staircases armor value's have been increased (armor = damage threshold needed to destroy the terrain object) Research mission renamed to Scouting