Unlock PVE Challenges quickly by speedrunning missions in Halo: The Master Chief Collection.
Start Your Mission
To start off, You’re going to want to start a Campaign Mission in Halo: Reach called Nightfall at the Rally Point: Charlie. You can do this using any difficulty and any amount of Skulls you choose.
Clear Out the Platform
Right after you start off on Rally Point: Charlie you’ll see a floating platform directly ahead of you. Walk towards it!
You’ll be equipped with a sniper rifle right off the bat so you can go ahead and pick off the 3 grunts that are on the floating platform. They’ll get on the turrets and give you grief if you don’t get all 3 of them.
Clear the Bridge and Drive the Forklift
Now that you’re safe from the 3 grunts on the platform, there will be a few grunts and an elite on the bridge. You can clear them out from a distance or get a little closer. Most of the time they’ll just run away from you once you’ve taken down a couple.
Right after you cross the bridge you’ll see a forklift. Drive it towards the gate that is directly behind it. This can be time-sensitive (I’ve only messed it up once) or it could get messed up if you continue to engage with the enemies higher up the hill.
Align the Forklift and Squeeze through the Gate
This is the trickiest part you’ll have to do. You need to align the forklift to where your character is exactly lined up with the split in the gate. Once you’re aligned, simply get out of the forklift.
If you got the placement just right, you’ll pop right through the gate. You are now way ahead of where you normally would be in the mission and can run to the end without (hopefully) having loaded in any enemies. Run straight and follow the route until you hit the end.
Reach The End
Once you’ve run straight eventually you’ll make it to this opening. This is literally the end of the level. You just beat the level in under 5 minutes! Congrats!