You will not achieve realism by restricting the players actions (especially by denying them the realistic ability to open a hatch and climb out of their vehicle).
But you do, that is exactly what realism games are about, why do you think any realism game worth it's salt has mechanics in place to prevent things like Bunnyhopping for instance?
Technically, Bunnyhopping could be done in real life for shorter periods of time, people can jump, so it's possible, so to make a true 1:1 scale realism experiance, then technically, it should be possible, but it's allways restricted, why? well because people abuse it, you don't see WWII footage (or any other war) where real soldiers bounce around like that, but if you allow it in a game, you will see it all the bloody time, because a game is not real, there is no real fear of death or anything else in a game (and that includes games with no respawns, you don't physically die in thouse either, you just have to wait a few minutes).
If you want realism, you must join a realism clan or play in organized scrims where you are assigned squads and are not allowed to respawn. Trying to force people to play "realistically" on pubs is a joke, especially in a game where you are able to respawn.
Bull, and easilly disproven, go join a pub game of say.. Cod1/2 or DoD:S, have a look at how people play thouse, then go join a pub game of ROOST (infantry only, to be a fair comparison) and see the difference, and belive me there is a difference.
What you wont get in pub games is organized team tactics, atleast never to the same extent that it's possible in an organized clan, that much is true, but that doesen't mean you can't get realistic individual tactics and movement and a semi coherent team effort in pub games, you can, but the game has to be well designed for it to happen.
And no, taking away respawns is no garuentee that people will play it in a more realistic manner, infact it can work the exact opposite, it all comes down to how the game is designed.
In ROOST, the object of the game was to get players into the capzones, but how well does that work without respawns? well i've tried that thanks to a mutator, and it doesen't, instead, people would hide in far away corners of the maps whenever possible, and gladly let the enemy take the caps just to stay alive.
How's that real? in the real life military, they don't let you run off and hide just because the objective may be dangerous, you've got orders to follow, and to turn your back on thouse because you're chicken is desertion.
Taking away respawns may be a good way to make players value their life a little more, but in objective based gametypes, that's not allways a good thing, because people will allways try to play such games as TDM matches, rather than risking going for the objective, unless you find a damn good way of stopping them from doing that (we'll see how Ro2 handles it, but im sceptical).
The entire reason rambo tactics can be so effective is because many pub teams are so incompetent and disorganized it doesn't matter what tactic you use.
No, the entire reason is because you can, because ROOST failed to encourage dismounted tankers to do the realistic thing (run back to spawn), and instead made it fun for them to do selfish, unrealistic and gamey things.
This is my problem with your argument, you say dismounting should be in because it's "realistic", but everything else you say betray that that's not why you want it at all, you want it so you can go play Rambo-tanker, for your own selfish amusement, with no regard for realism or the wellfare of your team, just so you can go get your rocks off.
Why should i or anyone else want to encourage that? why should TWI? why should we allow tanks to become the equivalent to the "Shield-belt" powerup from the Unreal Tournament games, just so you can go "pwnz tha servorz" a little longer than you could as an infantry class?
No thanks mate, if you're going to tie up one of the teams tanker slots, then i want to see you tanking, and doing your job for the team, not waste a third of the match crawling around on your belly, to maybe,
MAYBE take out one solitary enemy tank with a captured AT weapon, and i sure as hell don't want to see you in the capzones of CA maps, because 1) you wont have any capping power anyway, and 2) if you're there, then where the