Here is the full list of all 32 Xeno Crisis achievements.
COMPLETE THE FACILITY AREA
COMPLETE THE PERIMETER AREA
KILL 100 ENEMIES IN A SINGLE GAME
COMPLETE THE DUNES AREA
COMPLETE THE NEST AREA
COMPLETE THE FOREST AREA
COMPLETE THE LAB AREA
KILL 500 ENEMIES IN A SINGLE GAME
KILL 1000 ENEMIES IN A SINGLE GAME
AMASS 100 DOG TAGS IN A SINGLE GAME
AMASS 200 DOG TAGS IN A SINGLE GAME
RESCUE ALL HOSTAGES IN A SINGLE GAME
ACHIEVE AN S RANK ON THE PERIMETER AREA
ACHIEVE AN S RANK ON THE FACILITY AREA
ACHIEVE AN S RANK IN THE DUNES
ACHIEVE AN S RANK IN THE NEST
ACHIEVE AN S RANK IN THE FOREST
ACHIEVE AN S RANK IN THE LAB
ACHIEVE AN S RANK IN THE HQ
COMPLETE THE GAME ON 'EASY'
COMPLETE THE GAME ON 'HARD'
COMPLETE THE GAME AND RECEIVE THE GOOD ENDING
KILL 5 ENEMIES OR MORE WITH A SINGLE EXPLOSION
MAX OUT ALL OF YOUR STATS
KILL 100 ENEMIES WITH YOUR MELEE ATTACK IN A SINGLE GAME
COMPLETE AN AREA WITHOUT ROLLING
VISIT EVERY ROOM IN THE GAME
COMPLETE BOSS RUSH MODE
COMPLETE THE GAME WITH TWO PLAYERS
KILL 2500 ENEMIES WHEN PLAYING INFINITE MODE
DEFEAT ANY BOSS WITHOUT TAKING A HIT
SCORE A MILLION POINTS OR MORE