Warning shots are a waste of ammunition and not a particularly effective deterrent. Instead, modern warfighters inform potentially lost civilians/potential suicide bombers that they’re in the soldier’s rifle sights by blasting them with laser light from barrel-mounted laser dazzlers like these.
The US Marine Corps is a fast-moving, flexible, forward-operating force geared to take and hold territory quickly and efficiently. This flexibility is exemplified in the US Marine Corps’ favourite armoured troop carrier: the eight-wheeled, tank-hunting LAV-AT. The only thing it can’t do is fly.