Here is the full list of all 41 SMASH+GRAB achievements.
Reach account level 10
Defeat 25 soldiers in a single match
Complete 10 games of Ransack
Win a game while playing as Etch
Complete a game of Take Back
Complete a game of Ransack
Win a game while playing as Upscribe
Complete 50 games of Ransack
Complete 50 games of Take Back
Reach account level 50
Win 25 games while playing as Upscribe
Win 25 games while playing as Etch
Win 25 games while playing as Dripoff
Win 25 games while playing as Nil
Win 25 games while playing as Scatter
Win 25 games while playing as Doomchild
Win 25 games while playing as 10-Blade
Earn the tutorial reward
Hold $25,000 in cash for your team at the end of a match
Win 100 games of Ransack
Complete 10 games of Take Back
Win 100 games of Take Back
Win 100 games while playing as Upscribe
Win 250 games while playing as Upscribe
Win 100 games while playing as Etch
Win 250 games while playing as Etch
Win a game while playing as Dripoff
Win 100 games while playing as Dripoff
Win 250 games while playing as Dripoff
Win a game while playing as Nil
Win 100 games while playing as Nil
Win 250 games while playing as Nil
Win a game while playing as Scatter
Win 100 games while playing as Scatter
Win 250 games while playing as Scatter
Win a game while playing as Doomchild
Win 100 games while playing as Doomchild
Win 250 games while playing as Doomchild
Win a game while playing as 10-Blade
Win 100 games while playing as 10-Blade
Win 250 games while playing as 10-Blade