G.I. Joe: Operation Blackout

Fairly easy to do. Storm shadow is the boss of the level. Obviously playing as snake eyes, do enough damage to get storm shadow to about 1/4 health and melee away. Things to be aware of are storm shadows ultimate seems unavoidable and reduces you to 1 hp with shields intact. His ultimate also tracks you no matter how far you run.

I suggest doing all mission specific achievements on easy and/or with modifiers to make the completion go faster. Play as Snake Eyes and push through the level Until you face off against Storm Shadow. DPS him all you need but only use the melee when he gets low on health. THE FINAL BLOW HAS TO BE MELEE.