I played it a lot, but I found matchmaking to be too frustrating. Always a host migration that winds up back at the lobby... And the X-button insta-kills are ridiculous. But the motion sensor is my preferred merc device, with antiflash, mines, and adrenaline. intel suit and thermal goggles are great for spies. Just don't rely on thermals too much because you lose track of the relative amount of light near your spy.