Quote:
A HE (high-explosive, i.e. not a frag) grenade MAY (I say may because I really don't know, not a combat engineer or spec ops) cause C4 to blow, but as used in game there's too much crap surrounding the c4 in the mine, and nothing packed around the grenade causing the explosive blast to be concentrated towards the c4 to get any reaction.
And you've made me go to the bookshelf and dig up my manual because I just don't know the nitty gritty like I used to.
I just did 2 hours worth of reading.
Good times.
Short answer is yes a frag grenade can set off C4.
Why? Because the M67 frag uses Compound B (part of the C-in-C4 family). Weee!
Grenade is made up of a fun onion of death.
Outershell = shrapnel
Guts = Comp B
Blasting cap = M213 fuze
The "electrical" detonator Teaks mentioned is a method of delivery, not ignition.
You can also set it off using any HE item.
Both M6 and M7 detonation setups use a blasting cap as the mini "pop" that starts the "boom".
Hell, you can wrap det cord around a block of C4 and set it off no caps or electrical wire required.
As far as mines specifically?
Most have a Tetryl core, which is cheaper than the Compound stuff in the volume a mine will use it in and close to the same expansive properties.
While Teaks is right that the outer shell protects against a HE setting off the Tet inside, that would never come into play.
Why?
Logic assumption. When you pull out the mines in bc2 and left click the mine is on the ground armed.
We know this because when we put it out and something rolls over it the mine explodes.
Sure we don't see the process of arming, but whatever.
So the mine is live when we placed it and the force of even a few ounces of HE a frag provides moves enough gasses (the pressure wave that's the deadly part of the explosive) to trip the pressure-activator setup on the land mine. Throw in some shrapnel and the debris it would create and the chances go up even higher.
This argument may not hold up by tossing a grenade someplace near a mine in an open field, but the MCOMs are usually in enclosed buildings where proximity makes things easier.