03 Oct 2008
You can get this by skill or by cheating a little.
If your good enough you can do it on your own - the only problem is that when you die, you go back to the last checkpoint every time - or if you have a second controller, load the map up and have that controller stay back in case you need to respawn - if you both die then yes, you go back to the last checkpoint but if one dies then the other has a chance to respawn. It is up to you whether a friend takes control of player 2 or whether you just leave them idle.
If you do load up a second controller with a human playing, try not to let them take all your kills - only let them get the odd few to help you advance. Killing larger vehicles and enemies such as scarabs really boost your score and you'll find yourself getting 20/30 thousand quite quickly.
My setup was as follows in terms of multipliers and skulls:
Free For All (Especially if more than one player)
Catch Skulls (Every NPC carries two grenades and throws them often)
Thunderstorm Skulls (Upgrades enemies to their stronger versions.)
Fog Skulls (Your motion sensor disappears)
Doing it inside the 2.00x time multiplier might help but with those skulls on and on normal I didn't find time to be an issue.