Version 2.0: Airfield system, fighters, bombers, a new map.

https://www.youtube.com/watch?v=mItI5o0kyP8 [b]New Feature: [/b] Airfield system For both factions, the airfield can be build in the T2 tech phase. Players can make fighter and bomber. Each jet unit occupies 1 or 2 positions in the airfield.Fighters are effective to enemy air targets, while strikers or bombers can make massive destructions to enemy ground targets, especially when fighters take the air domination. New helicopter moving system The moving system for helicopters is remake. Now gunships move more smoothly and realisticly. [b]New Units:[/b] F-16: Fighter unit of Steel Alliance A-10: Striker unit of Steel Alliance Steel Claw: Fighter unit of Gaia, with higher attack and faster moving speed. Valkyrie: Heavy bomber unit of Gaia, occupies 2 positions in the airfield, make massive destruction to ground targets. [b]New Map:[/b] Close Combat: A 2v2 map, with many buildings to garrion in the center. [b]Bug Fix:[/b] Fix a bug that sniper in the mecernary camp will aim air units in unlimited range. Building preview can display the correct color when it can not be place one the ground.