I built a remote controlled drone on rubber tracks to act as a scout. But I realized I need to transport it somehow. It’s not possible to build a trailer or compartment in another vehicle for my little killer to sit inside while I drive it around, is it? Any other suggestions on how to get my drone into the hot zone?

You could rebuild it as a foldable vehicle but if its to big it wont work well, and it will probably result n a much weaker drone. There has been talk about vehicle mounts for larger vehicles but nothing solid yet. There has also been extensive work put towards trailer type attachments but they are still in the works and probably a ways off.