Get as much strength, defense, and reproduction as possible, the defense and repo makes u impossible to kill and strength puts u in a full cell in 1 or 2 attacks.
More strenght the harder it is to take over and the more it populates the more you can send, I won with no agility, all reproduction, 4 defense, 5 speed 7 strenght.
I recommend finding your own strategy, but what I do is get first get tanks, then get them in a line, leave some at your base just in case, and always order some troops. At the begging of each round, when there is 1 second left, use artillary. and always have an apache near the middle and at the base.
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