Another usage of course is around corners (barns, small UFO corners) or when about to enter the next "map square" if it is hidden. When detecting movement, I often calculate where to throw a grenade, proximity mine, or if multiple enemies, a high explosive charge.
A few important tips about motion scanner are:
- Remember that aliens that don't move OR move very LITTLE, will not show up on the motion scanner.
- Ideally, scan at the beginning of the turn in order to avoid confusion with movement of your own troops.
- Very useful in base defense, especially when your soldiers are hiding behind closed doors and need to "peep out" in order to identify hostiles.
- Four large blips together identify a terror unit (cyber disc, reaper, etc.). Good to know in order to avoid or prepare that high explosive charge.
[(]Carry around 3-4 motions scanners, one with each squad.