Anti-personel mines and claymores not working

[Dr.Q]

I have seen the tripwire + handgrenade traps explode, it's just that as soon as one enemy spots a mine, they all know about it and will never ever step on it. And they are a little bit too good at spotting the things, doesn't seem to be something that could be fixed without an official patch

[IceShade]

Interestingly, try saving the game while an enemy is right on top of a mine that refuses to explode. Then, reload. More often than not, the mine explodes.

The whole boobytrap system is weird.