Halo 4 Hacker
Guy managed to mod his weapon so it fired Ordnance pods, and at one point, call down about 50 Rail Gun ordnances, which killed the frame rate.
Although it sucks, it is quite funny to watch.
If anyone wants to see the non-iPhone 5 recorded version, you can D/L it off my File Share from 'The Little Moa'.
File is titled 'Halo 4 Hacker'.