@E-Tree here I got you an idea.
Its July 6th, 1944. A day before the landing of Normady is to take place the 5th marine battalion is ordered to drop behind enemy lines. In the battalion there is the 1st marine regiment and 3rd marine regiment. Each regiment having a little of 30 battle hardened Marines. As they approach flak Bursts all around. Being tossed around the plane. Looking out the window 1st lieutents (insert your guys name here) sees the plane of the 3rd marine regiment get hit, engine aflame the marine jump. The next moment the plane shakes violent before going into a spiral. The last thing the lieutenant sees is the ground rapidly approaching. Then it goes black...
Hours later the lieutenant wakes up to find a complete different setting. He finds himself in the middle of the desert, gunfire all around. Looking around he sees the rest of the 1st Marine regiment. Some just coming to others unconscious. In the distance he sees an on going fire fight. Tanks...but not any tank he's see before. It doesn't look like a m4 Sherman or British Churchill. German? No its not...it looks like nothing he's ever seen. He begins what looks like animals on the tank....what is it he is seeing, where is he, and what the hell happened.
And yeah I just came up with this on the fly. Do what you want with it just a quick idea