Talk:Advanced Decoder/@comment-4850844-20120324064614/@comment-3182180-20120325003811


 * Round 1 ~ 4, use MP5, go to upstairs, hide between three boxes in the left.
 * Round 5 ~ 9, use SIG SG550 Sniper and start aiming for enemies on rooftop. IF you have Sentry gun, place it at the edge of rooftop.
 * Round 10, use AT4 to defeat Comanche.

Rinse and repeat. To get 15,000 kills, you must done around 1000 ~ 2000 kills in one day. The milestone is you get free SG550 for 3 days.