Resident Evil Revelations

In one of the episodes you have defend quinn. Shoot the fuel tanks and use the rpgs on groups. Ep 7 Collect ammo on your way to the deck. Once you have made it to the deck qipe out the enemies. After the cutscence get past the enemies fast as you can. You will encounter Rachel again. Kill her then head down the ladder. If you see the rpg use it on the big enemy. If not just rush past them like I did, until you reach the room. Ep 8 is mostly a water maze try your best to memorize where you have been. Ep 9 once you get to the lab you will get attacked in the decontamination room. Snipe it in the head until it dies. Do it quick enough you will get an achievement. Once you have the id and the virus. Put the virus into the machine. Then use the id. Then just swim above the lasers and out the window until you reach Chris. Be you use the passcode get ready for a fight. If you have a rpg use it on the big enemies, and sniper shots to the head work. I hope this helps.