Here is the full list of all 78 Caliber achievements.
Reach Account Level 70
Play 100 rounds in Special Operation mode
Win 100 rounds in Annihilation mode
Destroy 100 enemy mines
Play 100 rounds in Annihilation mode
Collect all SAS collection operators
Kill 20 Sergeants
Execute an enemy player 1000 times
Collect all AMF collection operators
Collect all SSO RB collection operators
Collect all Alpha collection operators
Play 100 rounds in Frontline mode
Collect all KSK collection operators
Collect all SSO collection operators
Collect all Vympel collection operators
Reach Account Level 60
Collect all Arystan collection operators
Kill 10 000 bots
Collect all Jiaolong collection operators
Kill 30 Medic bots
Collect all TFB collection operators
Collect all BOPE collection operators
Kill 30 Support officers
Collect all SEAL collection operators
Collect all 22 SpN collection operators
Win 100 rounds in Showdown mode
Heal 100 000 HP
Play 100 rounds in Showdown mode
Destroy 50 devices
Kill 100 Marksman bots
Win 100 rounds in Point Sweep mode
Play 100 rounds in Point Sweep mode
Kill 50 Chemists
Kill 1000 bots
Complete Prologue: Marksman
Kill 100 Assault bots
Obtain 1 000 000 Credits
Complete a Weekly Objective
Kill 100 bots
Complete all Daily Objectives
Over the course of a single round, deal damage with all your weapons and apply any negative effect (bleeding, burning or poisoned)
Kill the enemy with a smoke or a flashbang grenade
Reach Account Level 10
Reach Account Level 20
Reach Account Level 30
Reach Account Level 40
Reach Account Level 50
Receive an Assault Operator
Receive a Support Operator
Receive a Medic Operator
Receive a Marksman Operator
Collect all GROM collection operators
Collect all RAID collection operators
Collect all Nesher collection operators
Collect all EZAPAC collection operators
Collect all CST collection operators
Obtain operators from 15 different collections
Obtain 5 Operators in each role
Complete Prologue: Assault
Complete Prologue: Support
Complete Prologue: Medic
Reach Account Level 80
Reach Account Level 90
Reach Account Level 100
Kill 10 Heavy Fighters
Obtain 10 000 000 Credits
Obtain 1 000 000 000 Credits
Play 100 rounds in Onslaught: Veteran mode
Play 100 rounds in Onslaught: Legend mode
Win 100 rounds in Special Operation mode
Win 100 rounds in Onslaught: Legend mode
Win 100 rounds in Onslaught: Veteran mode
Win 100 rounds in Frontline mode
Win in 100 Ranked Battles
Use an emote 5000 times
Blow up 100 enemy vehicles
Kill a Heavy Fighter with the last round of your secondary weapon
Reach Prestige level 100