Newbie: Which PzC game to begin?

[76mm]

Wouldn't it preferable to just throw myself into a H2H when I read the manual and play against the AI a bit? After all I'm still a bootcamper.

Sure up to you! Personally I find it difficult to make the time commitment necessary to play a full campaign head-to-head, especially if I was just learning the game system and was likely to be trounced...168 turns is a long time to suffer