Play The Raft C (Prison Rooftop). Select Wolverine as the starting character. Once the mission starts, swap in the Hulk. Chip at the Abomination's heart until there is a tiny bit left. Wait for him to perform the three-hit combo, which makes him vulnerable to your attacks. Tag in Wolverine now in the Abomination's direction killing him and then the trophy should pop. Make sure you get the timing right.