~start of a loooong lecture~
[short answer]
I totally love ALL, of the maps on socom 3 (except storm front) but I miss ALL the maps from s2.. [/short answer] i think they might put all of the socom maps on s4... if there is one. remember, the ps3 is going to use the blu-ray disc and that hold about 8 times the memory of a dvd (sry bout the bad grammar XD).. so i'm hoping all the maps could be on s4.
And IF they think that the s2 maps are small, they can either...
1. make em small maps with the good ol 16 player stuff or..
2. use the single-player maps if they want in place of the s2 maps.. but then there are some maps like vigilance and requiem that arent even on single-player.
Then there are those game types, s3 got multiple while s2 got single game types... if they were to put multiple game types for the s2 maps..

ALL maps make good suppression maps.

Demolition maps make good extraction and escort maps, but not all extraction and escort maps make good demolition maps.

Breach maps make good escort maps since they are one-sided.

Breach maps might also make good extractions too.

Some supression maps make good demo maps.
So in conclusion, Zipper should have brought the s2 maps since everybody loved em.
~end of that looooong lecture~