Show you how to shoot..check!
Show you how to use sights..check!
Show you how to pull a grenade...check!
Show you how to re-supply....check!
Show you how to repair a tank...check!
Show you how to climb a ladder...check!
Show you how to crawl and crouch..check!
Show you how to jump...check!
Show you how squad layouts work.........
Show you how to call for backup, medic..anything..........
Show you some brief objective examples.......
Show you what your opponents look like.......
Show you how to heal a team mate........
Show you the effects of smoke......
Show you how different weapons fire and the proper use of them.....
I think some of the answers you sought are already in the weapon descriptions.
Visit the Armoury. The beta had zero info. I was really happy to see the training segment.
Calling for backup, medic --> speak into the mic ! I believe the game will automatically insert standard clips (e.g., "Medic !", "I'm reloading, cover me", "I'm hurt", ...)
Would be good if the training section show the more strategic in-game elements (e.g., map reading and special symbols). The objective examples are described in text, but you can only join Sabotage and Supression at first anyway. By the time you get to other modes, you should already be familiar with the environment.
About Smoke, I think it's a great tactical weapon. Help to defend against snipers. Are you sure you're throwing standard grenade or smoke grenade ? I think I saw a chemical grenade in the Armoury too. I saw brown smoke and thought that must be the smoke grenade. The standard ones have white smoke.
I joined Raven and assumed since the background story is that these soldiers have no experience and gain their skills through simulation that it would offer the training every noob needs. To my dismay the only way a noob is going to learn how to play this game remotely effectively is either 1. Lots of play time, 2. Someone to show them (should have been developers job!)
Some standard squad techniques should be elaborated. This should help to foster cooperation and leadership. I think they should publish more info online, and then patch into the game.
Other than that, it's point and shoot. Will have to rely on survival instinct and personality.
EDIT:
Hmm... I didn't notice the L3 sprinting cannot be turned off. Will have to try later. I thought it's either trigger-based (press another time to slow down) or "hold down to sprint". I don't use sprinting that often anymore after Cornsnake mentioned that you'll show up on enemies' radar if you sprint.
When you're near enemy locations, walk ! People will lobe a grenade in your direction before you even see them. Nearly got killed that way.
They could have taken a que from UC2 when it came to pulling up your sights, your field of view is cut down drastically by pulling up your sights. So much so that I doubt many people will be able to use the accuracy bonus of doing so adequately. The window in which you can see your target through your iron sights is so small it makes tracking them through your sights nearly impossible. This disappointments me the most as "run and gun" is not what takes place in a war, this isn't supposed to be an action movie it's supposed to be war and in war soldiers aim with their sights! Leave run and gunning to close quarter combat where it belongs!
I didn't notice this problem too. May be it's because I only use iron sight on mid-range to far away enemies. In this case, the small tip helps aiming because your target is not obscured. For close up, use fire from hip.