You tie your legs together, go in a dark room, and spin around saying "magic fairies, magic fairies." you become a better merc if you record it and post it on YouTube. .-.
Go into your bathroom at night and lock the door, turn off any lights and shout mercenary three times at the mirror. Tada.
In order to be a merc, you buy a gun permit, learn how to shoot and kill like Rambo and kill the terrorist leader and then kony, after that you start up pimd, join a club whose in a war and purposely lose...no I mean win
all good answers The best way to be a merc is to listen to buddy. Name your video "PIMD merc" so we know when you're ready