Here is the full list of all 23 Frontline Tactics achievements.
Unlock a little of everything.
Grenade fragments makes enemies bleed.
Kill! Kill! Kill!
Win some missions to get feet wet.
Blind and stun enemies.
Swiftly defeat the enemy.
Knowledge is power!
Kill multiple enemies in a single burst.
Pepper more than one target with bullets.
Dual wield-r-us.
First successful mission turn boys to men.
Win a lot of missions.
Crossfire is good. More is better!
Use cover and survive longer.
Unlock everything.
Defeat enemies of flesh and bone.
Grow your squad.
Deploy and extract a full team.
Perform slice and dice kills.
Defeat enemy elite troops.
More skills are better than few.
Horde a lot of credits.
Buying credits is totally OK!