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