Board Thread:Strategies/@comment-65.26.100.174-20150910023044/@comment-64.60.87.90-20151222230606

if your plan is stay at level 35-45 and not advance past that than get rank 6 wimps. If your plan is to advance to max level (currently level 70) than don't waste too much time on any unit until you unlock plasma artillery and allied spiderwasp warriors and electric fences. If you are willing to spend nanos than invest in legendary or mech units. Those are the only nano units I would recommend investing in. You could also invest nanos into some buildings like advanced repair shops and high capacity storage, and permit office and maybe advanced hospital but that one isn't as important as the others.

Nano units will help you in PVP and defeating bosses to get boss drops. They can also help in boss strikes but you can easily score over a million points in boss strike without a single nano unit.