(I think 5 successes is enough that I don't need any help, so I'll go with a free maneuver for the 2 advantage and aim, then upgrade my next check with the triumph.)
Omega heard the sound of the trap going off, head still ringing from his opponents attack he came up with a plan I need to end this quickly, but I can't do that from here. Then he realized what he needed to do, pulling out one of his grenades he found a spot of total darkness near his cover, and he tried to fade into it suspecting that his opponent would be too distracted with the trap to notice where he was going. Once he was in position he saw he had a decent line of sight to his opponent between a pair of crates that had been placed on the platform, certain that he would not be seen Omega got his angles set to throw the grenade if his attacker got closer, and waited.