Does Modern Warfare 3's plot help MW2's make sense?

[KILGAZOR]

So, anyone who's played MW2's singleplayer knows what an incomprehensible clusterfuck of a plot it had. I don't plan on buying MW3, but I was curious to see how the plot wrapped up, so I read a plot summary of it. Apparently there's a part where

Spoiler

there's a flashback about some guy that was apparently present at the events in the previous MW games]

and I'm just wondering if any of that or anything else fills in any of the plot holes and other unclear plot points of MW2, and if so, please explain it to me so I don't have to waste another $60 like I did with Black Ops.

 

[DalekJaas]

I didn't think so, I still didn't really follow it. It was pretty fun and epic though.