So, this is something I have been wondering about since the Alpha. Why does the Security Forces use a cellphone when destroying weapon caches, while the Insurgents use an actual detonator? It's as if the Security Forces are using IED's, while the Insurgents are using proper explosives. I don't know if its just me, but I feel like it should be the other way around. Unless the devs accidentally did this or I'm an idiot, I don't know. Regardless, it's not game breaking.
Friendly demo classes can blow up caches using their own explosives, rockets and grenades can work too, so rigging the cache is really more of an option of not having anything else on hand.
It's a great feature - a spent few too many times in that last game as the last one standing trying to blow a cache without anything to blow it up with, doing the run around to find something a bot dropped I could use.
This makes a lot of sense now that it's been pointed out. If Security used a military grade detonator, we would all ask why we can't use that everywhere else on the map, since we apparently all get one.
If they do a strike mode, I hope it's back like in Insurgency where you had to have explosives.