[DS] More help with infantry.

We have been playing dirtside lately and I have been having problems
figuring out how to use infantry.  I'm thinking about reworking my
current infantry as follows:

4 GEV MICVs
4 Elements GMS/L
2 Elements APSW
2 Elements Rifles w/Artillery spotter abilities.

I think my opponents will sit up and take notice.

My main opponent likes to us PA. I'm thinking some
HEF artillery on his PA, which he likes to bunch,
should cause him at least minor problems.

One other question.  I keep hearing people say that
armour that armour in among infantry is in trouble.
In Dirtside I just don't see this.  Am I seeing
incorrectly?