GM based Tank Battle with emphasis on Support Units.

Mods:

@ace, @ace_compat_gm, @acex, @cba_a3, @diwako_dui, @enhanced_movement, @global mobilization extra - tfar compatibility, @grad_slinghelmet, @grad_trenches, @gruppe_adler_mod, @splendid_smoke, @tfar, @tfar_autoswitch, @vet_unflipping, @zen, @zen_compat_ace