Heya so basically I got to talking with a friend about a mod so I'll share the idea with you all.
Basically the idea is some sort of backpack you could put on a boomrat, it'd lead the little thing by some food on a string tied to a stick, and it'll have a remote controlled rotated on it so you can sorta direct where the boomrat would go by turning it slightly. And then igniting it at the desired location.
Mechanically it'd make a piece of gear or something similar you can put on a boom rat to turn it into a controllable pawn temporarily.
There is a mod for a suicide vest for pawns. Maybe it can be modified for animals too :D