I'm the other way around. I didn't really like the MP demo, but the SP demo was quite fun and I'd consider buying this. If I am assured that the AI will be improved. Now that is hidious in the SP demo, I swear they spent more time on AI in the MP demo!
If the AI can:
1) Attempt to take cover
2) Hit a cow's arse with a banjo
then I'll read reviews and consider a purchase. Just today I was staring in amazement as a bad guy and one of my team mates stood, full exposed (well, they had clothes on, but no cover
), not more than 8 feet away from each other. Both had automatic weapons. Neither hit each other for a good 20 seconds. It was like that scene out of Naked Gun! Eventually I gave up in disgust and wasted the bad guy with one bullet. The good guy was lucky to escape my wrath.
War isn't about who's right, its about who's left.