"The Real Deal" achievement

[Undead]

The achievement is to complete a campain on expert with realism turned on.
3 questions:

1. Which is the best campain to do this with?
2. Who is willing to play with me to do it?
3. Any pro tips I don't know about?

P.S: Sometimes the game blocks at the loading screen for the campain. It doesn't happen regularly but when it does I need to Ctrl+alt+del out of the game and restart it. Does this happen to anyone else and if so how do I fix it?

[bob]

dead air

glitch first event: stand on ledge

save bile for running event

glitch finale: under wing of plane on the boxes

I'm not going to play with you, but do some public games and try to find players. Check profiles for high hours to make sure they're decent and will hopefully help you. Always be courteous to carriers who do and respond to suggestions.

Play some advanced camp -> advanced realism -> expert camp to make it easier.

[NPC]

The easiest campaigns for RE is Dead Center and/or No Mercy imo. The tough ones would be Hard Rain and Parish.