Avatar Awards:Unlock the following Avatar Awards by performing the corresponding tasks:AVATAR AWARD – HOW TO UNLOCKSpace Helmet – Fire the Project X Weapon. Space Suit – Complete the space walk on Elite difficulty. Achievements:ACHIEVEMENT – HOW TO UNLOCKBattle-hardened (25 points) – Single player completed. Elite Unit (25 points) – Single player completed on Elite difficulty. Exterminator (20 points) – Killed 1000 aliens. Frag-master (30 points) – Killed 5 aliens with one Frag Grenade. Hidden Treasure (10 points) – Found all secret collectibles. Immobilised (20 points) – Stunned 5 aliens with one Stun Grenade. Meat Grinder (10 points) – Killed 250 aliens during multiplayer Survivor mode. More Speed, Less Haste (10 points) –