Well, sadly I first played Halo 3, I was too scared to beat the level "The Flood" and got lost. I was so embarrassed... but I finally beat it and started to like the Flood...
Until I played Halo CE, the darn things were stronger, then after getting lost in the place where you first meet them [Where you find the video of SGT. Johnson getting attacked with his marines] after I escaped, I was happy, no more Flood! I thought.
Then I went to the EVEN HARDER level, the sentinels helped, but the flood kept popping up and I was too scared. Then I got guts, finished the level, and I still haven't finished the game because my friend wanted it back :(.
Although I now know why MC & Cortana have a bad history with The Moniter,