Create a call sign name



When you first play the game you will have to create and put your sign name and when you do that you will get this achievement

Lucky Rookie


Achieve 20 headshots



Sharpshooter


Achieve 100 headshots



Sharpshooter Master


Achieve 1000 headshots



In my opinion the easiest way to go for headshots or kills in general is playing TDM since the gamemode takes a long time to finish and gives you a chance of getting alot of kills, And for the weapon i would say use the AK since that's a 1 shot to the head if you had good aim and control.

First blood


Achieve first kill



Veteran


Achieve 100 kills



Human weapon


Achieve 2000 kills



One man army


Achieve 5000 kills



The way i see it is the more you play the faster you can get these 4 achievements.

Butcher


Achieve 30 melee kills



Samurai


Achieve 100 melee kills



This is FPS, use your gun


Achieve 500 melee kills



for these achievements, all i can tell you is to have patience and be a camper. You can either use the left click (2 stabs to kill) or right click (1 stab to kill) but the right click takes a little time to hit since its basically a charged shot or something like that

Senior Soldier


Achieve level 20



Officer


Achieve level 30



Senior Officer


Achieve level 40



High-ranking Officer


Achieve level 50



Field Officer


Achieve level 60



Shining Star


Achieve level 72



I can't really help much when these achievements but, all i know is that demolition and clan matches give you the most xp.

Receive first item



Whenever you open a supply drop or crate you will receive an item, Redeem it from your inbox and the achievement will pop up

Open any Random Box



You will get a daily login reward which has a random box and medals in it, open the random box and you will get the achievement

Buy first item in any shops



You can either buy an item from the medal shop or the normal shop doesn't matter. If you don't want to waste money just buy a pistol or grenade and you will get this achievement

Add friends



You can either make a friend download the game and add him from it or you can just add your second account and you'll get the achievement

Be the last survivor and win in Demolition mode



For this you should wait until your all your teammates die and you should try to clutch the round by either killing the remaining enemies or defusing the bomb without them knowing

Mount Calling Card



You can either buy a calling card from the normal shop or medal shop. I advise you to get it from the medal shop because normal shop requires real money. Go to medal shop then press on "Item" and then you can choose a calling card you like

Defuse the bomb for the first time



You can just camp somewhere and wait for for the other team to plant the bomb and then get your teammates to kill the enemies and simply defuse the bomb

First day in clan


Join a clan



Grab a gun, rookie


Participate in 1 clan match



You can either join a clan which your friend created or simply make your own clan. To play a clan match you need to have atleast 5 members online and then head to "Clan Match" channel and find a clan you want to compete against

Play 1 Quick match



You can play any game mode and it doesn't matter if u joined late, You will get the achievement as long as you finished the game

Winner I


Achieve 10 wins



Winner II


Achieve 100 wins



Winner III


Achieve 500 wins



These achievements will eventually be unlocked at some point if you keep playing, but for me i would tell you to play TDM since demolition takes quite some time for the game to end

Destroy your item once



For you to destroy an item you should own it permenantly. Once you buy an item from the shop you can destroy it by going to your inventory, then take your mouse curstor to that item and you'll see 4 options there, "F1" , "F2" , "F3" and a bin icon. Press on that bin icon and it will show you a confirmation thingy then press destroy and you'll get the achievement

Terminator


Achieve 40 kills in 1 game



Life is precious, man


Suicide 3 times in a single game



My life for BlackSquad


Achieve 200 playtime hours



Black Squad


Achieve level 100



POTG!


Achieve 20 kills, 20 headshots, and 20 assists in one game



The achievements descriptions pretty much tell you everything about them and in my opinion you don't need help or explanation for them