Hey let me tell you something good. Look, for an early ground defence create 10 snipers and 10 kindjal infantry. Line the snipers in front of the kindjal infantry( yo, both must be in rows, like line after line) that is the best early ground combination for atiedes. The sniper will fire at oncoming infantry and kindjal at enemy tanks, but hey don't forget air attacks. Now thats left to you.