Here is the full list of all 29 Greg Hastings Paintball 2 achievements worth 1,000 gamerscore.
Shoot 10,000 paintballs.
Eliminate three or more opponents with a single grenade.
Dive or slide 100 times.
Win a round entirely from the prone position.
Win a woodsball and a speedball tournament.
Eliminate three opponents by shooting them in the goggles in a single round.
Win a round where you issue field commands to at least 3 teammates.
Purchase all gear.
Play games with teammates from 50 real teams.
Win an event while using the jersey, pants and marker from the same manufacturer.
Completed all Speedball Events
Completed all Woodsball Events.
Completed all Recball Events.
Completed all 3 Event Tracks
Complete all events on Hard.
Eliminate an opposing flag carrier with a rocket.
Successfully cheat five times in a row without failing.
Win a round while wearing the “Rodeo King” mask.
Eliminate three opponents in a single round with a completely fogged mask.
Eliminate an entire enemy team using a single pistol clip in a non-reinsertion game.
Win a 7-on-7 or higher non-reinsertion game where you eliminate all opponents.
Win a split-screen round where neither you nor your buddy are eliminated.
Using a pump-gun, eliminate 3 or more opponents in a round without missing.
Get three or more eliminations in a round with over 25% accuracy.
Eliminate an opponent that you can't see using the paintballs' trajectory.
Shoot an opponent in the back from their own side of the field.
Win a round without losing a teammate in a 5-on-5 or bigger match-up.
Win a round with 3+ eliminations using a marker without having to reload in a 5v5 or larger match.
Succesfully cheat once.