We've played this together a few times with Scriv and Taz. So far it's been good fun for the most part.
The main game mode in Rising Storm 2: Vietnam is Territories, where the attackers try to capture and hold one or two objectives at the same time in order to advance for the next set of objectives. It's a lot like a mix of Rush and Conquest from the Battlefield series. 32 players on each side for a total of 64 players on the server.
Most of the time the attackers are USA, but sometimes they can be Australian Army or Vietcong. The defending side is usually Vietcong. What side you are on decides what weapons you can have and how do squad spawns happen. The US soldiers can spawn directly on their squad leader, and the Vietkong squad leader can place a squad tunnel to be used by any squad member. The basic grunt gets an M16/AK-47 and a few grenades. Special classes get flamethrowers, sniper rifles, RPGs etc. The weapons are deadly and accurate. Using full auto is only good for extremely close quarters.
Other gameplay mechanics include the ability to rest your weapon on a surface, which happens automatically once you're close enough. Another way of improving accuracy is to use a bipod or going prone. There is a suppression effect, so even hitting close to an enemy has some effect by letting other squad members to advance. With most weapons you can adjust the scope for the range. This is more of a concern for sniper rifles and generally very long range engagements.
The only vehicles at the moment are helicopters, and only the US side gets them. There's a recon chopper, a transport chopper and an attack chopper. I think an APC is coming in the future. The maps are big and often have dense forests to hide in.
What are you waiting for? Get back on the battlefield! At the momement you can get RS2: Vietnam for 10$ on Humble Bundle. You'll also get the modern day shooter Insurgency and the WWII shooter Day of Infamy (both from the same developer) as well as some other games.
https://www.humblebundle.com/games/war ... ut_type_twos_tile_index_1