The majority of the maps on the server (if not all) have built in map secrets such as smokes, flashes, hats and trails. I don't think any of these currently work on the server because they depend on CSS grenade SWEPs for the most part. Facepunch thread about what I mean. I don't think they'd be hard to add to the server either, and can't think of any negatives related to putting them in.
Highwon was in the process of this, He added the AK, not sure why he didn't add the rest to be honest.
it might have taken too much time, and people were only complaining about the lack of AKs. i suppose smokes and trails weren't needed at the time but yeah +1 we should get this stuff in
+1 Please Add. Im not sure about this but deathrun_pain has a shooting range mini game where you get to pick a bunch of weapons, but since only the AK is in, you can only pick up the AK