Ive read the whole suggestions forum and i cant seem to find anything on this, although to me it seemed reasonably obvious.
Scenario:
UFO is flying around on the edge of a base's radar range.
You send a single F-17 to intercept. He tails for a bit, but soon bingos fuel and has to RTB.
You send a second interceptor out but half way en route, the UFO disappears.
First there is no way of telling whether the UFO has just flown out of range of radar or whether it has gone back to outer space.
So you want to send the interceptor to its 'LAST KNOWN POSITION' to attempt to ping it visually.
In XCOM, as soon as the UFO disappeared the 'UFO LOST' window would appear and options would appear:
move to last known postion
Patrol
return to base
..or something to that effect.
Either way selecting any of these options reduces the time scale to 5 secs - to prevent wasting precious seconds letting the offending UFO escape further away.
Also, having the window appear, stops the interceptor from immediately returning to base - or essentially flying roughly in opposite direction to the last known position of the UFO - which is devastating to your ability to end up catching it again.
Yes?