a good way to last longer is wait for all but 1 of ur troops are dead then buy a tank when u get a tank push tword the enemy lines get past the enemy lines , keep doing that and taunting the germans untill u can get another tank do that over and over and u get medals faster by doing so.
plz note back and se if this works :P
is it better to combine the weakest gem and work ur way up to a circle or is it better to make pure circles plz respond soon cuz i got to defeat the first epic boss