Sidearm Savant achievement will not unlock

And as I say this, about a million different notifications popped up with updates of all kindsa stuff, so maybe one of them will fix it

Still valid - Use the Steam Fix it worked for me.
https://steamcommunity.com/app/2807960/discussions/0/591784592221194506/

Originally posted by yifeng3007:

I made a quick guide for anyone wanting to find the fix:

You can use the RPG, but only to take out the heli. You can use the throwing knives. You can order your squadmates to take down threats as you see fit.

The mission's bugged, but it's not hard to get the achievement - there is a workaround:
1) complete "Night Raid", making sure that you only use your knives, pistol and squad commands to eliminate threats;
2) after you take down the heli, a cutscene will start - let it play out;
3) you will get taken to the next mission, "No Sleep", watch the cutscene and wait until your character is off the helicopter;
4) once you're able to move, hit ESC and return to the menu;
5) from the menu, navigate to your campaign missions list and find "Night Raid";
6) continuing the mission will restart the cutscene from the end of "Night Raid" - let it finish;
7) once the cutscene with the car ends and the next one with Gecko in the house starts, you will be awarded with the achievement.

If by the end of it you still don't get the achievement, then you must've done something wrong during your playthrough, or there's something else wrong with the mission.

It worked for me, thank you very much, brother. The achievement pop-up didn't appear, but when I checked on Steam, it was there.

Trophy doesn’t work nor the challenge in game. PS5

worked. thx for the workaround!

Thanks this worked for me.  

Trophy will not pop on PS5 despite trying other suggested fixes, even freezing the game when I try to continue the mission from the main menu.

Thanks,  it worked for me to

worked like a charm for me on PC - steam. thx man

I'm having a hard time, too. PS5. Hopefully it gets corrected soon!