Here is the full list of all 5394 Drive-By Hero achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Shoot 12500 times
Shoot 10000 times
Shoot 7500 times
Shoot 5000 times
Shoot 4500 times
Shoot 4000 times
Shoot 3500 times
Defeat a boss zombie
Complete the third level
Shoot 3000 times
Shoot 2500 times
Shoot 2000 times
Kill ten zombies without missing
Shoot 1500 times
Shoot 1400 times
Shoot 1300 times
Shoot 1200 times
Shoot 1100 times
Shoot 1000 times
Shoot 900 times
Complete the second level