It might sound stupid, but I routinely use THTs in Scout cars for this kind of thing. Fine, they're both very, very fragile units, but when you use two or three of them together then they can harrass enemy forces and sometimes take a couple of enemies with them before they die, as well as being quite speedy.
That said, I rarely play 1500< , as whilst epic battles can be fun, I quite like skirmishing and using forces very carefully, rather than large assaults, where some people use whole companies as bait.