It is so easy to kill/be killed so you have to really be smart about how to attack the maps.
Anyone else?
A lot of people I heard, said they didn't like ghosts for that reason. They liked running and gunning and hated the fact that they would die so much quicker. But I loved it. I started FPS gaming later than a lot of my friends (I picked up a PS3 and Black Ops a couple weeks before MW3 came out) and they were all really good, I was forced to take my time working around maps so I actually had a chance to kill someone rather than always being the bait. As I got better, I got used to the run and gun style a bit but my style always defaulted to the strategic play. I felt that I would just let the rest of my team run around like a bunch of chickens with their heads cut off and then I would try to be that sneaky a$$ ninja that goes around all the action and behind enemy lines to squeeze out the guys hunkered down. Which typically worked really well with the players we would have. Then Ghosts came out and it forced everyone to have to do play more strategically so when everyone was having to re-figure out that strategy, my learning curve was a lot smaller and I was able to take the lead and dominate.