This seems like thye most enjoyable way to complete this part of the game anyway, so this trophy is more of a gift. In chapter 6 you will need to desctoy the APC that is patrolling around. There is plenty of C4 around the place and you only need to stick 2 pieces of C4 to the APC to get the trophy. Make sure they stick to it and don't land on the ground underneath it.
Plant multiple C4 charges on the APC at the same time and destroy it with one massive detonation