Jund in Pauper - Good / Bad matchups?

Hey guys,

Midrange lover here, so when the interest in Pauper grew in my hometown, I automatically looked for a Jund deck.

Here is the list: http://mtgpulse.com/event/21686#304788

I was just wanting to know what the main good / bad mathcups where, and if some of the cards in the 75 are to be used on certain cards?

Cheers