A surprisingly enjoyable little game when it works right, Iron Grip Warlord is unfortunately ruined by AI that either cannot think for itself or aimbots endlessly, and an online community that at this stage is fairly dead. The mix of RTS, FPS, and Tower Defence is a nice breath of fresh air, but sadly not enough of one to let me recommend a purchase.
Singleplayer AI is shockingly good for the enemies, if a wee bit predictable - note though that this doesn't make it easy, as unless you're playing co-op with another human, your chances of taking out the enemy commanders and eventually winning the game are essentially zero. Friendly AI on the other hand has bouts of intelligence mixed in with an unreasonable love of running at walls and sticking to them.
The game looks great for its age thanks to a fairly recent overhaul by the developers to presumably promote sales of the DLC, and seeing the outlandish weapons and equipment of both sides is fun - for a time anyways. Audio gets the job done, but is nothing special. Controls are fine, but the game runs a little too fast for itself and makes gunfights in FPS mode more of something akin to a hopping match in UT2K4.
Neat idea, but sadly Iron Grip was seemingly a victim of its own flawed originality and a public flailing by the gaming press back on its initial release. Lack of optimization of core gameplay even after the DLC is rather pathetic too, as that just serves to encourage buyers to look elsewhere, as I recommend all readers should too.