The fastest way to obtain this achievement is to repeat Mission 3 of Episode 2 in offline mode.
You will reach a point almost immediately where you have to find a keycard on some corpses, this is when the mines you can disarm will begin to show up.
If you do this offline instead of online, your teammates can't steal your disarms, destroy the mines, set them off, etc. If you make your way around the base there are usually ~10 and you may or may not have to do a simple exit and load back up if you get lucky with your spawns.
You will see red lasers peeking out from corners or even just in the middle of your pathways, make sure the zombies or yourself don't walk into these, for they WILL explode. Try to make your way to the sides of them carefully or behind them and press and hold
to disarm them. Do this a total of 10 times and your achievement will pop!