TERM is the default (15). 9 is KILL

In Dune II (1992) the units move slower when they’re off screen. This is useful because you can only select one unit at a time to give orders, so if you want to send an army into the enemy base you send them one at a time. But then you can carefully position your camera to allow the units at the rear to catch up with those in the lead so your whole army arrives at once and overwhelms the enemy.