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