Hey fa/tg/uys, In a Mage campaign I'm going to take part in, we are going to be storming the bad guys WWII AA Tower that just happens to be a Hallow.

My character is pretty good at chemicals and building, so I'm in charge of making explosives.

What would be the best way to put explosives right under the bad guys feet? One Idea I had was to make the bombs invisible with Matter 2, strap them on rats, and then use our thyrus buddy to guide them to the bad guys.

Any other creative ideas? The less magic, the better.