Yes true, but even the Marder I made it to WoT while the II is nowhere to be seen. I literally don't know one game that has it - not even FH2 iirc.

It is actually the Marder II that is in World of Tanks.
Although this is the Sd.Kfz. 131 version as opposed to the 132 version in nysä's picture.

http://wiki.wargaming.net/en/Tank:G20_Marder_II

There is supposed to be full character customization, but I can't confirm any details since customization wasn't enabled in the open beta.

However this customization has been taken way too far and while traditional uniforms and equipment is available, there's also lots of (IMO) stupid stuff like pilot helmets, leather jackets, prostetic limbs, blue face paint, Asian women fighting in the British army, Allied soldier with a katana on his back, etc. Besides completely ruining immersion it's basically impossible to tell who on earth you ran into and in the beta I basically could only tell the teams apart at first glance because friendlies have a 3D HUD icon above them and enemies don't.

Vehicles will also be customizable with upgrades changing their appearance (long barrel or side skirts for the Panzer IV for example) and with cosmetic items such as flags, mascots, camo nets, improvised armor such as sandbags, etc.

Played the beta for a bit. Visually stunning while the sound- and destruction design still seems incomplete. Can't hear footstepts and tanks can't crush cars, etc. While Rotterdam map looks amazing, it lacks atmosphere. There's no chaos, no 'war'. Feels like a paintball match. Customization/unlocks/progression system is trash. Faction distinction is terrible because of the weird soldier customizations and mostly I end up just shooting everyone who doesn't have a clue icon above him. The attrition (low ammo) is currently way overdone (you spawn with only 60 rounds for STG-44 for example). Gunplay is kinda okay, tank vs tank combat is just lame, planes are terrible.

The game has potential but honestly this doesn't look anywhere near being done (talking like 4-5 months of work here). This feels like an early alpha build to me. If they release in november it will be a fiasco.

I don't think they'll go for the more well-known parts of the conflict (Pacific like the islands campaign, Eastern Front like Kursk or Europe like D-Day) but stick to the untold stories instead. So things like the fall of the British colonies in Asia, the Soviet-Japanese war or the US/UK landings in Africa, Italy or South France. Those could do with 2-4 maps each.

Whether the reason is bad original release date timing or player backlash remains to be seen... 

What I just do not understand at all is why they do not simply add an option 'authentic skins only' that disables woman characters and ridiculous customization for everyone who wants a more immersive experience. It would be such an easy solution to this problem. Both sides would be happy this way.

Also it would be hard to put all of them in the picture if they weren't next to it. 

Given the fact that they are perfectly lit up (big light source to the left) while the trees in the background are dark, I'd say this is a completely staged photo just to show off the device and crew.

Aah fixed, thanks for letting me know. Have done that on a few occasions, I thought the swastikas are an absolute no-no here

Swastikas are forbidden in some countries like Germany, but never in historical context (i.e. posting a photograph) afaik.