Tomorrow War is a movie about a war in the future seen from the perspective of one guy sent forward from our time, ahead of schedule, on an emergency mission. The first scene we see is a fallen city, where the main char has to pull out some valuable intelligence. The second and third scenes are forward operating bases, where the future is obviously using old tech. It could have been reserve stuff they pulled out of mothballs, but as a world builder I would assume it is stuff sent forward from the past. Helicopters. Humvees. Stuff that can fit inside a soccer stadium. And stuff that is light enough to be sucked up into the wormhole. Assuming there is a weight limit there. We don’t see any future tech in these two scenes, which once again is a world building moment. The future simply doesn’t have enough tech left to spend it in forward operating bases, no matter their importance.