the black omen is so strange though if thats the case. Because if you go to 2300 AD and fight the security lasers you cannot fight them again in earlier time periods which are all before that instance. However, if you destroy the 1000 AD black omen, you can still encounter it in 600 AD and 12,000 BC, but you, Sentenal, said you cannot. I thought you could, I'll go check now, I might be wrong here.
Am I missing some aspect of it transcending time, or is it an error by the programmers, or is it just like that because it just is?