Been away awhile...
 

And am wondering what some of these new abbreviations and mods are:

-RA
-Alfa Tau
-DWX

-Any other major mods since I was playing DW last (I used to run LWAMI)

Ra(reinforce alert) is now called DWX(to make it equivalent namesake with SH3's GWX I suppose) you must have this mod in my opinion.
Don't forget to download the patch as well

Link to mod
http://www.redrodgers.com/forums/showthread.php?t=4912

Link to patch
download starts pressing Загружаем just under "latest news".
http://www.ra-dwx.narod.ru/

Alfa Tau is Italian mod for DW. DWX is howeevr the biggest and the newest mod right now. I suggest you try it. You'' love it. Make sure you read the weapon documentation. They've changed so many things on most of the weapons.