Nice looking game.
Performance was, unfortunately, lacking on my low-end laptop*.
As for the gameplay: IMHO, you should drop the healthbar and replace it with a Doom'esque healthmeter (i. e. a mugshot of the character getting more and more bloodied, depending on her well-being. Or perhaps even a character sprite that gets crippled after a certain amount of hits).
*CPU: Intel C2D T5500bev@1.66GHz
GPU: ATI Mobility Radeon HD 2300
RAM: 2GB DDR2
OS: Windows 7 x64
Browser: Google Chrome
Sorry to hear that ): Are your drivers up to date? How do C2 games normally run for you?