Using this save file you can get the multiplayer achievements in no time (no need for grinding in the mp :)] as well as the achievements for the secret collectibles(only need to collect the first secret in the first mission of the Acts).
https://drive.google.com/file/d/1M9dsceNLILyHWCX0CuBz2492mNPDrN_q/view?usp=sharing

SECRETS
Poking the Bush
This is the achievement for collecting all the secrets in Act 1.
Start Act 1 Mission 1 and you can find the secret inside a hut after killing first two enemies in the game.


Keepsakes Of War
This is the achievement for collecting all the secrets in Act 2.
Start Act 2 Mission 1 and proceed forward after killing two guys in the beginning of the mission. After moving a little forward you can see the building in the pic, Go inside the building and you can find the secret in the second room.

In Search of Enlightenment
This is the achievement for collecting all the secrets in Act 3.
Start Act 3 Mission 1 and after killing the first group of enemies, proceed a little further ,the secret is on the right pillar at its top.


MULTIPLAYER
Unhappy Camper (Kill 10 opponents in multiplayer using your sidearm)
You will get the achievement after killing just 1 enemy with your sidearm.




Bloodstreak (Kill 25 opponents in multiplayer)
Pure Ownage (Kill 50 opponents in multiplayer)
The Sniper Elite (Kill 100 opponents in multiplayer)
Get all the THREE achievements by killing just a single enemy!



Kill That F**ing Band! (Take 25 headshots in multiplayer)
Blood And Tears (Take 50 headshots in multiplayer)
Get the two achievements by taking a single headshot in multiplayer!!



Death Dealer (Win 25 Team Deathmatch rounds)
Get the achievement by winning just a single TDM!!!

https://drive.google.com/file/d/1jCcNV-JLDFKNYh9Fw3oxkO7oEn9H_Joo/view?usp=sharing

Harvester Of Sorrow (Complete the game on Expert)
Start the game and click on Continue, the last mission of the game will be loaded, finish it and the achievement will pop.



I Never Bleed (Complete the Campaign using max one medkit per mission)
Start the game and click on Continue, the last mission of the game will be loaded, finish it and the achievement will pop, just make sure not to use any medkit.

https://drive.google.com/file/d/1KY0mGfKbpoHtt14Vt-jRM-cKOofLh8Uh/view?usp=sharing
This achievement save is a little different. After downloading the .rar file extract it and move it to this location (C:\Users\%USERNAME%\Saved Games\SniperGhostWarrior2\SaveGames) and paste it and delete all the other files or move them to a different folder temporarily.

Bullets Can't Hurt Me (Complete any act without using medkits)
Load the game and click on continue, the last mission will start , finish it and the achievement will pop, just make sure not to use any medkit.