TroJan

1. Start the game on master difficulty. First chapter doesn't matter
2. Get killed intentionally. The screen greys out with X to respawn. change difficulty to easy. Do not press x to respawn the game will reload itself from last checkpoint.
3. Play through the rest of the level and complete on easy but get credit for master.
4. If you somehow died on easy after switching, do the same but this time change to master and repeat the steps. Death by falls don't matter as it doesn't prompt respawn. Only gunfire and explosions count as a death.