How many campaign maps gave the gravhammer?

Games Other Halo
1

How many campaign maps gave the gravhammer? I know it is on 1 map,and was wondering if there was more.

2

I’m 90% sure Midnight is the only campaign mission featuring the Gravity Hammer.

I could be wrong though.

3

I was wondering if there were any more for jump tricks. I was also if wondering anyone had used grenade jumps to explore the maps further.