I'm at 97% on my brink trophies, all i need is one engi to disarm a mine after i spot it......
problem is bots run across mines even if they know its there, and humans....nuggets. Today two human operated engis watch me ironsight the mine sat infront of where i needed to hack. then i stepped back to give the "disarm it" effect, they shot it...one was too close took the boom then got finished by incoming fire from the Arcs finest. Don't really know what the point here is, maybe i have E-rage.

Bad luck, start asking during games to have an Engi follow you. I spotted a mine on aquarium next to the elevator that I took up, next thing I know I got the achievement.

i had to get a friend to disarm mine other people just shoot or walk over them if your on ps3 i could help same psn name.