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