I never said anything about Internet connection.
There is a performance issue when you're connected from one box online against lots of other people though.
Hmm it looks you did, not that it really matters anyway as I know it to be a non issue, also try to be a little more clear in future.
It takes a lot LOT longer on Veteran than Recruit difficulty. I know, I've completed it on both. (Veteran first, then Recruit).
After playing cod2 and 3 on veteran i know it can take a fair while longer, trouble is you end up sacrificing some of the fun for quite frustrating game play at times, longer game play beats overly hard short game play any day.