Chris (Ironsniper) has been working on a near-future tank he’s dubbed the ADT100 “Coyote”. Of particular note is Chris’ use of a Technic ball joint to connect the gun to the turret.
Chris also posted a follow-up tank dubbed A2N8 “Anubis”, accompanied by a nice diorama, but I prefer the sleeker turret on his Coyote.
And in case Chris’ tan troops get injured, Project Azazel comes in from the desert with this medevac Humvee, bulbous in its capacity to bring comfort to the wounded:
Despite their square shape, Humvees are notoriously challenging to build properly in LEGO. Also notice how both builders have placed their models on a simple brick-built base, which adds a lot to the presentation (I assume it’s coincidence that they’re both dark tan).