This media release consists of map updates, models, music, and a new podcast. The podcast has video of the maps, as well as the concept art for the s-lar. If you dont watch it your really missing out on some cool stuff others who don't watch wont see.
Please enjoy the podcast that includes
-Navysealguy3 (Charles)
-Dr. Shaverea (Carl)
-Bychop
instead of replacing the AR2 slot with the S-Lar why not use the old AR1 slot and code?
The original ar1 code was for the cut beta ak47 and has semi auto as well as 3 and 5 round burst modes if I recall correctly.
Half-life.wikia.com