Hey guys, I was just wondering why sometimes in games you see a little red arrows over an enemys head? You can even see it through walls from ages away!! Thanks

Oh and I got a orbital strike on crash site, and I called it in on the crash site and It got a triple kill, BUT the triple kill did NOT go to me, it went to a teamate..... Yes it was my orbital, not my teamates. Because after I used it, I didn't still have one... This happend to anyone else before? :S