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

Dear Dr.Ed Argon I have problem, after i completed main ops 08 i have obtained butterfly rank, but i used only stun rod and mosin-nagant rifle,as far as i know butterfly rank can be obtained if you use non-lethal close range weapon like mk 22, but i have shot only 20 people with it,so what should i do?