Hi :)
DRIVER (DVR)
1. Like mentioned earlier, manual gear selection.
2. A "multi-function display system"(MFD) (for the Gunner (GNR) and Tank Commandet (TC) too) through which the crew can share views from diferent cameras and sights of the tank.
Exemples: a) Simply displaying the view of the front DVR camera (like in M2A3 BFV or Stryker ICV). DVR can use a camera mounted on the rear of the hull (like on Leopard2.../MBT Revolution/ Kuma). c) While moving from turret down to hull down or from hull down to turret down position DVR will to look through the gunner's primary sight (GPS), to know when to stop. d) If more cameras are present, for exemple side cameras, DVR (and other crew members) are able to display their views. e) Checks the state of tank's systems
TANK COMMANDER (TC)
1. Proper hunter-killer system. The new Fire Control System (FCS) is doing quite well, but it's still not it. I'll take a Leopard 2 tank as exemple. TC have the ability to override the turret using the commander's sight (in this case PERI), or using the gunner's sight. He can also slave its PERI to the turret, so the PERI aims at the same point as GNR. These operations should be done by clicking one button. I know that there were some issues with this, especialy in multiplayer. That's why, now there are only little markers which show to GNR and TC where the other one is aiming. The hunter-killer system can be done by "MFD system" (I mean that in older tanks hunter-killer was performed by different means. For exemple in M1 tanks by gunner's Primary Sight Extension.
Nowadays (with german PUMA APC, or russian T-14 tank) all of the tank displays are "standardized").
2. MFD system. Here's a photo of the combat compartment of the MBT Revolution/ Kuma. On the foreground we can see the TC station with two MFDs on which TC displays the view from the commander's sight, from the CROWS, from the Battle Management System (BMS (in ARMA simply the map. The map works fine as a BMS)), or he checks the status of the vechicle (ammo, state of tank's systems...same for the DVR). On the background we can see the GNR station. The middle double ocular is the EMES sight (GPS). To its left is the GNR auxiliary sight (GAS). Forward and down of the EMES oculars we've got a MFD.
4. The ability to use the Commander's Sight (PERI/CITV) or CROWS (if present) when needed. The "CITV" has manual and automatic scan modes. CROWS features programmable target reference points for multiple locations, programmable sector surveillance scanning, automatic target ballistic lead, automatic target tracking, and programmable no-fire zones.
5. To enforce "battle with open hatches", like in real life, there should be implemented a two stage "turn out". First where only the head shows off the hatch to observe the terrain by eye or binoculars. Second which would like the one present in game for no direct threat situations.
GUNNER (GNR)
1. MFD...
http://s1105.photobucket.com/user/buglerbilly/media/150624%20Puma_Interior_zpsxitxfpfk.jpg.html
2. Hunter-killer system. The gunner can use the comander's sight for engaging targets throught MFD, once the GPS is damaged.
3. Ballistic computer augmentation. Entering Battlesight ranges already present. (((Enter wind speed, air and ammunition temperature, gun barrel wear...)))
4.
OTHERS
1. More hit points, like Gunner's Primary Sight, Gunner's Auxiliary Sight, PERI/CITV-Commanders independet thermal viewer= Commanders sight,, antenas, Auxiliary Power Unit, CROWS...
2. Mine plow and mine roller.
https://www.youtube.com/watch?v=d3n0dTn6tLk
3. New vechicle inventory and tank ammunition. I imagine three slots for a vechicle, like for infantry: suit, vest, backpack. These slost are: primary ammunition compartment, secondary ammunition compartment, storage boxes for crew equipment (food, water, medicaments, clothing ect...).
In this case gun rounds, MG ammo belts, smoke grenades for tank smoke dischargers would be just as carbine mags for infantry. For exemple, a Leopard's 2 primary ammunition compatment have a capacity of 15 rounds, so you can store 15 rounds inside, of differnet type: APFSDS, APDS, HE, HEAT, MP-HEAT, HESH, HEP, HEF, Canister, WP, ATGM (exemple: 9M11M Refleks...). So, for a counter insurgency mission you'll take full HEAT, HE, HEF, MP-HEAT load. For a mission on a conventional battlefield you'll take 60% APFSDS and 40% HEAT...ect.
http://s1383.photobucket.com/user/borch2000/media/arma3%20tank%20dlc%20ammunition%20compartment_zpsadrsxdqt.png.html
The tank should not be able to fire rounds from the secondary ammunition compartment until they are loaded into the primary ammunition compartment. In Leopard 2 it is done by the Loader itself, with the turret facing backwards (+-5 o'clock), the APU and Engine off, Thermal Imaging System (TIS) getting warm).
