Here is the full list of all 19 Death Toll achievements.
Run someone over
Pickup all 4 cases
No turning back now
Pickup a briefcase
Fly in a plane
Destroy a vehicle
Hop in a vehicle with a team mate
Join a team
Kill 100 players
Kill 200 players
Pop 25 tires
Die from your own doing
Get a motorcycle airborne for 5 seconds
Repair 25 vehicle parts
Hop in a helicopter with 2 other team mates
Make a kill from a long distance
Escape the island with all brief cases
Win a match without killing
Complete the Intro