Airborne are way too hard, every game that i have played (about 50) ended on Air lvl 7-9 even if i sell all and buy only airdef and slowers its imposible to go further than 9lvl air :/
Cool game, bit short (all badges in 30min) much better than 1st part, for 3rd version it needs much more tank upgrade, i get super fighter in 20 minutes...