One suggestion I have: a weight system. Each piece of armor would have a weight, and soldiers could only carry so much, so you would have to prioritize where arm goes, or just get really weak armor that covers everything.
The point of cells stopping the connection when they run out of points/energy is so you don't just sit back and watch when you outnumber the foe, it keeps you doing something. I would like to see special blocks though, or multiple enemies. Other then that great game 4/5.
The game could use some balance:
The main character should not be able to singlehandedly destroy enemy bases when your allies are destroyed in the first 5 seconds. It would be nice to actually be able to use your alleys and not have them die. It would also be nice to have the enemies that are patrolling chase you for a certain distance the retreat. The mission variety is good and it is one of the few games I have ever seen take this style of top down combat to this scale. 4.5/5.
I only played through the first few levels, but this looks like portal in the unity engine. Unless some major game changing concept is introduced, this is portal browser edition.
It's a decent game, better then all the other MMO games I've played on this site (baring Runescape) but the combat is a bit grindy. Could they add something skill-baced in the combat engine?
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Many of the free offers you can complete for gems do not require a credit card. =)