User blog comment:Dr.Ed Argon/Metal Gear Solid Peace Walker codenames/@comment-92.235.120.214-20120411170230/@comment-3520130-20120702182455

Sorry that my reply is late, but...

It's not that hard to start over from beginning. I recently tried speedrun- FOX- codename hunt and it succeeded. Less than 50 hours.

Anyway. First, make sure they are knocked out cold (stars over their head), so it does count. Then, DO NOT use any other weapon until absolutely necessary. Otherwise you screw up your count and that is bad...

2 star Eel comes when you have completed 50 % of all missions (both CO-OPS and Single Player). If you play alone, that's every single player mission.