Resident Evil: Operation Raccoon City

: You must be signed into the Sony Entertainment Network to unlock this trophy.
Maximum Players Needed to Boost: At least 2

This is a Versus Mode trophy and can be done either in "Public" or "Private" matches. First of all, CQC stands for Close Quarter Combat and this is one of the hardest trophies to obtain if you're not boosting at all. I highly recommend that you save your precious time and simply boost this with a partner or a group of boosters. While boosting this trophy, do it on Survivor because Survivor is the only game mode type that has the least amount of health, so players die quicker from the melee combats. Plus do the Skill... Or Luck? trophy along with it. This way you can have the 10 killstreak trophy unlock too. Whenever you encounter an opponent and they are close enough to melee. Get closer to them and press the melee button with over and over again until they look stunned. Once they're stun from your melee attacks, press and hold the action button of to perform a brutal kill. This brutal kill usually stabs your opponent in the neck with a knife or you'll either stomp their head on the ground. Brutal kills will instantly kill your opponent and also counts as a CQC kill. Below is the boosting method:

How to Boost 10 CQC Kills in One Game:

1. Have at least 1 boosting ready to accept an invite.
2. Start a Private match on Survivor and invite your boosting partner.
3. Select any Stage map you wish, but I prefer the Fire Stage called Blood as it's the smallest map with only Licker special monsters.
4. When the match starts run towards the center of the fiery stage and kill your partner with a CQC brutal kill.
5. Your boosting partner then respawns and continues coming towards the center to keep getting CQC killed.
6. The person who's going for the trophy must stay alive at all times until they gotten their 10th CQC kill and their 10 streak trophy. Remember to use First Aid Sprays, Antiviral Sprays and Herbs if needed.