Also Known As: Ventilation shaft hunter 3D

You spend lots of time crawling around in dark ventilation shafts, into business offices and such that have no entrance besides the ventilation pipes.
"Could you give me directions to your office?"
"Sure, just smash the vent pipe entrance with your crowbar, crawl through to vent pipe 2, which is your second left, climb up the vent pipe ladder, drop down two flights of vent pipes, crawl past the random spinning blade in the vent shaft, turn off the power so you can continue through vent shaft intersection 23, then my office is the third vent shaft on the right"

Yeah.
And not to mention, they even have the ingenuity to re-texture and repackage the original Half-Life game and paste their name on it.
"Oh whats this? I have to go turn on some switches elsewhere in the level to kill the huge monster in the center room? NEVER DONE THAT ONE BEFORE!"

Also features a chargeable wrench. Thats right. The longer you hold the thing over your shoulder the more damage it does. I gotta get me one of those..
Not to mention the incredibly intelligent AI. Watch as your helpful allies stand in your way while you're being shot at, trip alarms, run into your line of sight, and generally work their hardest to get everyone involved killed.
Also, they're ingenious AI prevents them from doing things like stepping up a quarter inch.
"No thanks, only immaculate flat surfaces for me. Im a green beret, stepping up onto the rail car is out of my range of ability"

What good do I have to say about this game? The new monster models they added were done well. Or at least they didn't totally suck.

Then again, Im a bit cynical towards the flood of me-to first person shooters out there.
The sad thing is, this game really is in the top ten or so single player first person shooters. Not to say this game is good, but that its competition is that bad