27 Nov 2009 27 Nov 2009
I struggled to do this in any of the ways suggested - instead I lay prone in the 'ticket booth' nearest to the dodgems and ferris wheel and positioned myself in the middle of the booth so I couldn't be seen by any enemies and while there you cover enough of the room to be able to be within range of any grenades which come in meaning you can throw them back out immediately.
Once the chopper arrives and you have 30 seconds left I threw a flashbang against the wheel so that it bounced off and flashed as many enemies as possible then ran up to the hill for McMillan - once you have him you have a lot of health it seems as I walked past a terrorist shooting at me constantly and I wasn't killed. All possible in the last 30 seconds.
Note - I didn't kill ANYONE with my gun while using this method. I just placed the claymores around the surrounding area before the enemies rushed through.