OB1
I don't know if any of you played the DC or PS2 versions of this Sega game, but I did and it was pretty good. If Sega changes some things for the sequel then they could have a serious MGS-killer on their hands. Here are some awesome screens from the sequel, courtesy of tothegame.com:
http://www.tothegame.com/bilder/gaminfo/screenshots/headhunter2_ps2/screen1_large.jpg
http://www.tothegame.com/bilder/gaminfo/screenshots/headhunter2_ps2/screen2_large.jpg
http://www.tothegame.com/bilder/gaminfo/screenshots/headhunter2_ps2/screen3_large.jpg
http://www.tothegame.com/bilder/gaminfo/screenshots/headhunter2_ps2/screen4_large.jpg
http://www.tothegame.com/bilder/gaminfo/screenshots/headhunter2_ps2/screen1_large.jpg
http://www.tothegame.com/bilder/gaminfo/screenshots/headhunter2_ps2/screen2_large.jpg
http://www.tothegame.com/bilder/gaminfo/screenshots/headhunter2_ps2/screen3_large.jpg
http://www.tothegame.com/bilder/gaminfo/screenshots/headhunter2_ps2/screen4_large.jpg