Split

You can easily jump up to Heaven with your blast pack either as a defender or an attacker. Make sure you detonate it when you are just over it

Get into an unexpected angle on top of the boxes. Might surprise the opponent.

Leave a small gap between the two walls and aim for the corner sticking out on the top. Run a step and throw. This grenade will most likely flush out any enemies sitting in Elbow.

Line yourself up with the edge of the door aim at the middle of the diagonal line. Throw! This grenade can damage enemies waiting in A lobby.

Jump up on the box on A Ramp and aim as shown leaving only a small gap between the walls. Jump and throw. Can be deadly if combined with a sage slow orb.