Technology on Dragon Ball's Earth should be more advanced than our current military technology, given the existence of portable capsules that can store houses, vehicles, and more.
Other than technology created by the Capsule Corps though, regular military-grade tech doesn’t seem significantly more potent or destructive than the standard fare that we have today.
Weapons capable of causing massive destruction would be off-limits in densely populated areas unless absolutely necessary, so the majority of the fighting in this battle will be carried out by infantry and smaller-scale land vehicles (tanks, and mounted turrets maybe?).