There are numerous achievements in Halo Infinite. Some are earned by playing the campaign while others can be earned by playing the multiplayer. Both modes have hard to earn achievements and secret ones. One achievement that can be hard to figure out is the Nosebleed achievement.
To get the Nosebleed achievement in the Halo Infinite campaign, you will need to head to a particularly tall mountain. Head to the spot marked in the map below and climb to the top to earn this achievement. You can either use a flying vehicle or grapple your way up. If you use a grapple, we recommend upgrading it for the reduced cooldown.
Related: Where to find and unlock the Unbound Plasma Pistol in Halo Infinite Campaign?
Climbing up with the grapple can be a bit of a pain if you don't have the upgrade. With the reduced cooldown, you will be able to use the grapple again within a short time. Of course, a flying vehicle is the easiest way to get to the top of the mountain.
Once you reach the peak of this mountain, the Nosebleed achievement will pop. Once you get up here, take a moment to enjoy the view before jumping back into the action.
For more information on Halo, check out How to speedrun the first level in Halo Infinite? and How to activate skulls in Halo Infinite Campaign on Pro Game Guides.