0 0 0This is 100% complete guide to all achievement/collectibles and full game. Timestamps are in comment on YouTube:
0 0 0This occurs during Episode 5, Chapter 1. This isn't exactly difficult, especially if you just pace yourself, pay attention and hoard your powerful weapons. Make sure to do this on Easy to a smoother time, but it isn't impossible on Hard. TAKE YOUR TIME. If you screw up, you can't reload your checkpoint.