Just a general point to anyone that plays, the tutorial is quite seriously putting twenty minutes down as the fastest time to make your team. There are, however; a couple tricks to speed things up :
One. Put the wall really close to your spawn, increase the lifetime of the clones. Let them get around it, unless they're quite stupid it should only take about five minutes
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Next, pause the simulation (P, I think) and move the wall somewhere else. The tricky part is that you should try to kill every unit that goes to where the wall was, this way you're teaching them to create new paths every time. Anyways, after they find the relocated wall, move it one final time. This time around, make it more of a box with one opened end, rewarding the seventh or eigth one to successfuly get inside. That should take about twenty five minutes, and by then they should know how to combat enemies too ... the makings of a rudimentary army.
Final note, I did say it's a niche game - don't expect love at first sight
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