Developer deleted my account with 100 crystals. Reason "As there will be no more crystals with update + new skill for each class game WILL be wiped as there is no chance to fin new saves with previous." Crystals are still in game. Most trolling developer ever
In one of the early waves shoot one zombie till he is crawling. then ignore him and use time to lvl up both soldiers to lvl 20 and get all crates. just move to next crate whenever the zombie is near, he is way slower than you. do both soldiers to 7 intelligence, 3 strength and 10 agility. get kevlar armor, lvl 5 machine gun and 2 clips of machine gun armor. also take the 2 addtional soldiers and lvl em while the 2 trained can shoot everything now. train and equip the 3rd and 4th soldier same as first two. now sit down get some popcorn and wait till all waves are gone. dont forget to take some ammo from crate all 2 or 3 waves.
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exactly.