How about a World of Tanks fight using RC airsoft tanks in the real world? That should be a good idea and here is one candidate that you might want to consider the Heng Long Leopard 2a6 Airsoft Tank that the Airsoft CamMan features in this video... "I’ve bought so much random stuff since Airsoft has been postponed, but this has to be by far my most favourite thing.

This is the Heng Long Leopard 2a6. It’s a 1/16th scale (RC) Radio Controlled Replica of the real thing. The Leopard has approximately 50 meter range and a 20 minute runtime with the battery provided. The canon on the Heng Long RC Tank fires Airsoft 6mm BBs and holds up to 65 BBs."