<br><table width='100%' cellpadding=3 cellspacing=3 border=0><tr valign='top'><th>Achievement</th><th>How to unlock
</th></tr><tr valign='top'><td>Battle-hardened</td><td>Complete all single player levels 1-5.
</td></tr><tr valign='top'><td>Elite Unit</td><td>Complete all single player levels 1-5 on Elite difficulty.
</td></tr><tr valign='top'><td>Exterminator</td><td>Kill 1000 aliens in single player.
</td></tr><tr valign='top'><td>Frag-master</td><td>Kill 10 aliens with one frag grenade.
</td></tr><tr valign='top'><td>Hidden Treasure</td><td>Find all secret collectibles.
</td></tr><tr valign='top'><td>Immobilised</td><td>Stun 10 aliens with one stun grenade.
</td></tr><tr valign='top'><td>Meat Grinder</td><td>Kill 250 aliens on any multiplayer Survivor level.
</td></tr><tr valign='top'><td>More Speed, Less Haste</td><td>Complete 'Vengeance' single player level on Veteran difficulty in 17 minutes or less.
</td></tr><tr valign='top'><td>Seasoned Squaddie</td><td>Complete any multiplayer level.
</td></tr><tr valign='top'><td>Survivor</td><td>Stay alive for 8 minutes on any single player Survivor level.
</td></tr><tr valign='top'><td>Tank</td><td>Take 500 damage on 'Determination' single player mission without dying.
</td></tr><tr valign='top'><td>The Informed</td><td>Collect all the logs throughout the game.
</td></tr><tr valign='top'><td>Time to Party</td><td>Complete 3 Co-op Assault multiplayer games.
</td></tr></table>