Jus wondering if crossracing or cheating

Space Route 59
*a Battlecruiser* is flying here.
*a Battlecruiser* is flying here.
Exits: n s.

*a Battlecruiser* arrives from north.
*a Battlecruiser* arrives from north.
*a Battlecruiser* arrives from north.
*a Battlecruiser* arrives from north.
*a Battlecruiser* shoots your left wing with lasers and shatters it.
*a Battlecruiser* yells '*a Mutalisk* is here on Space Route 59!'
You fled head over heels.
Space Intersection
Exits: n e s w.

*a Carrier* arrives from east.
*a Carrier* arrives from east.
*a Interceptor* shoots your body with lasers and shatters it.
*a Interceptor* shoots your body with lasers and shatters it.
*a Interceptor* shoots your body with lasers and shatters it.
*a Interceptor* shoots your body with lasers and shatters it.
*a Arbiter* arrives from east.
*a Carrier* is surrounded in a misty shroud.
*a Carrier* is surrounded in a mistry shroud.
*a Interceptor* shoots your body with lasers and shatters it.
*a Interceptor* shoots your body with lasers and shatters it.
You are dead! Sorry...

So question is how did protoss know i was here they were not allied and they insta hit, wtf?