Here is the full list of all 45 RUNNING WITH RIFLES achievements.
100.000 bullets shot
50.000 bullets shot
Win the Brownpants campaign
Heal 5 wounded soldiers
Stab 10, kill 50 with a suppressed weapon and spot 15 strategical enemy structures
Destroy 10 special crates and deliver 8 secret cargo vehicles
Unlock 10 enemy weapons
Win the Greenbelts campaign
Destroyed the Darkcat tank
Destroy 5 special crates and deliver 4 secret cargo vehicles
Destroy 2 special crates and deliver 2 secret cargo vehicles
Unlock 5 enemy weapons
Died 200 times
Destroy 20 enemy vehicles
Heal 1 wounded soldier
Win the Greycollars campaign
Roadkill 20 soldiers
Stab 5, kill 20 with a suppressed weapon and spot 7 strategical enemy structures
Died 100 times
Stab 2, kill 10 with a suppressed weapon and spot 2 strategical enemy structures
Destroy 5 prison bus/doors
Kill 10 elite soldiers
10.000 bullets shot
Roadkill 5 soldiers
Destroy 10 enemy structures and 2 communication structures
Kill 1000 enemy soldiers
Kill 500 enemies with blast projectiles
Destroy 3 prison bus/doors
Destroy 1 anti-air structure
Destroy 5 enemy structures and 1 communication structure
Kill 5 elite soldiers
Destroy 10 enemy vehicles
Kill 200 enemies with blast projectiles
Kill 100 enemies with blast projectiles
Kill 500 enemy soldiers
Destroy 5 enemy vehicles
Destroy first prison bus/door
Unlock the first enemy weapon
Destroy 2 enemy structures
Win your first map of the campaign
Kill 100 enemy soldiers
Kill first elite soldier
Died 500 times
Roadkill 100 soldiers
Heal 10 wounded soldiers