Here is the full list of all 26 Gun-Running War Dogs achievements.
Finish the tutorial
Impossible
Win $1kk
Win 3 games in a row
Win 3 firefights in a row
Reach level 8
Win 5 games in a row
Win 5 firefights in a row
Win $100k
Get three stars rating
Reach level 7
Stay enlightened, brother!
21 at its best!
Reach level 6
Reach level 5
Lose all cash on blackjack
Win 3 bargains in a row
Win a gamble
Win a firefight
Win 5 bargains in a row
Win 1 bargain
or another
what I want
They guard
Get two stars rating
Break the contract