From what I can tell, this is an actual thing that they'll be doing on April 3.
On April 3, every tanker will find in their garage a special lunar version of the M-24 Chaffee to take into battle on the crater-marked surface of Moon River. With gravity that is one-sixth of Earth’s, big air and bigger landings are in store as these massive vehicles catapult over huge chasms.
And any trip to outer space wouldn’t be complete without a high-tech weapons arsenal. That’s why the M-24’s standard cannon will be replaced with a laser blaster able to fast load and fire off three bursts during lunar warfare.
And any trip to outer space wouldn’t be complete without a high-tech weapons arsenal. That’s why the M-24’s standard cannon will be replaced with a laser blaster able to fast load and fire off three bursts during lunar warfare.
If you are in North America, the event should kick off on April 3 at 10AM (PT) and end on April 5 at 11:59PM.
If this doesn't end up happening, then they really went all out with their press materials and promotion for a simple joke.