Last checkpoint glitch confirmed working on all missions 16 April 2021
If you use the last checkpoint glitch, this is super easy, with the one notable exception of "One Shot One Kill," where you are totally unprotected while retrieving McMillan and getting to the choppaahhh.
Last checkpoints are as follows (credit to InSpiritOfBash on playstationtrophies.org):
[Crew Expendable- after the explosion and your teammate helps you up and you start sprinting to exit the ship.
Blackout- after the power is cut and you enter the house to retrieve the objective.
Charlie Don't Surf- just after the big room gun fight with all the tvs and you head up to the roof to breach the last door for the last 5 tvs.
The Bog- after blowing up the AA gunner.
The Hunted- just after shooting down the chopper with the javelin.
Deaths From Above- you hear the commander suggest using 25 mm just before noting friendly choppers are in the area.
War Pig- just after a gun fight and a briefing you drop down to the tank and head towards an LZ
Shock And Awe- after rescuing the down choppers pilot and placing them on the chopper.
Safe House- after Price throw the flash bang in the door and closes it.
All Ghillied Up- when you encounter the dog on the leash.
One Shot One Kill- after placing Macmillan in his final sniping spot by the Farris wheel.
Heat- after dropping down to the gas station and boarding the LZ chopper.
Sins Of The Father- before the last set of stairs before going to the roof. If you reach the roof top stop and perform the glitch here.
Ultimatum- after you fend off the two trucks and go and pass through the gates and the sirens start sounding.
All In- after blowing up the final tank before your team starts cutting open the vents.
No Fighting In The War Room- after you get off the elevator.
Game Over- when your lying on the ground there will be two before Price slides you a pistol. When the chopper blows up and when he slides you the pistol. These are both usable.
https://www.playstationtrophies.org/forum/topic/289914-veter... ]
EDIT: This also works for Mile High Club. The last checkpoint is just after your boy opens the door to go skydiving. Doing this glitch at this moment will take you back to the slow-mo sequence where you shoot the hostage taker.
As far as
how to do the last checkpoint glitch, it goes like this:
1) Play mission on Recruit, all the way to the last checkpoint
2) Once the game says "Checkpoint Reached" in the top left of the screen, save and quit.
3) Make
sure you get all the way back to the title screen
4) Go to "Mission Select," and pick the mission you're on
5) The game will tell you its overwriting your progress. It won't if this is done properly, so click yes
6) Get ready to press the Xbox Guide button, and select "Veteran" difficulty
7)
As soon as the mission starts loading press the Xbox Guide button, hover over the game, and
quit the application before the level loads. This is indicated by the little green bar on the game screen on the lower right side
8) Boot the game back up
9) Select "Resume Campaign,"
do not go to Mission Select. The game will say "you want to continue the mission _______ from most recent checkpoint?" Select yes.
10) Check. The glitch was successful if you get an option to "Lower Difficulty" to Hardened, and you're at the last checkpoint.
11) Profit
Note: people playing on Xbox Series X/S may have trouble dashboarding before the mission loads. Next gen problems I guess ☹
As for "One Shot, One Kill"s last checkpoint, the easiest way to complete the Ferris Wheel bit is to act as if you're playing on Veteran. There is a glitch spot that can stop enemies from being able to spawn in a certain point, as well as shoot at you/get line of sight to you.
This glitch spot is on the right hand side by the apartment building, if you're facing the direction Cpt McMillan is, towards the pool. You just have to stand in a corner against a wall opposite the apartment building (directly across from the door where the second Intel is on this mission).
As far as getting Mac to the helicopter for the final objective, you can make it much easier on yourself in two ways.
First, place all claymores and C4 before setting Mac down in his designated spot (dont stray too far from him or the game will start from previous checkpoint). This means that when Cpt Mac says "take the rest of my claymores," you get a second full inventory of explosives.
Second, place all claymores and C4 in the vicinity of where the chopper door opens, making sure that they won't blow each other up by mistake. When you exit your glitch spot, you are no longer untouchable, and we all know how useful our comrades are on Veteran.
When prompted by the pilot to get on board, detonate all of your C4, and spam grenades towards the left side, as you're facing the chopper from the glitch spot. Once that is done, spam flashbangs, and run like hell, from cover to cover until you reach McMillan. Move cover to cover again, using anything you can, including your rescue team, to block incoming rounds, as you need to move quickly and obviously cannot shoot back. Once Mac is successfully on the helo, you're pretty much invincible.
Hope this helps, I didn't feel like doing the CoD4 Campaign on Veteran legitimately for a second time because it is eye-gougingly hard at some points, so I just didn't. I even did Mile High Club on Veteran legit the first time. Not again.
Happy hunting, friends.