Source:http://ftr.wot-news.com/2015/01/22/straight-outta-supertest-is-5-changes-crew-switch-price/
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Hello everyone,
大家嚎， 

according to Storm, no more limited MM premium vehicles will be introduced into the game (save for extremely special cases). To that end, IS-5 (earlier, it was supposed to have limited MM) was changed to have full MM. This came with a penetration buff, from 175 to 221 of the 122mm D-25T gun.
根据Storm的说法，游戏中不会再出现有分房保护的金币车了（除非是特别极端的情况）。于是IS-5（原来是有分房保护的）现在没有了分房保护。为了补偿这一点，它的穿深被增加了，它的122mm D-25T炮的穿深从175buff懂了到了221。 

Furthermore, the switch of crew’s specialization (radioman to driver for example) will not be cheap. The price was set to 600 gold and there is no credit option (it’s unclear whether this is the final version, but it seems so).
另外，乘员的职责重训（例如从通讯兵转职驾驶员）并不便宜。每一个乘员每一次转换需要600G。 而且没有用银币来练的选项（现在还不清楚这是不是最终决定，但是看起来就是了）

另：以下为WOT出品人，Evilly对于这600G的说法：

“I specifically asked about the retrain price. The 600 gold includes 200 for role retrain, 200 for perk reset and 200 for tank retrain. Because why would I leave the old perks on the new role, except for the universal ones. Plus, changing the role implies putting it on a new tank. The logic is sound, but the question of price reduction will be discussed nevertheless.”
“我特意去问过这价格是怎么回事。600G中包括了200G的乘员转职的钱，200G的技能重制钱，200G换坦克的钱。因为我肯定不会把旧的技能留在这人身上，除非是那些通用技能（灭火，隐蔽，修理等等）另外，你乘员都转职了就意味着他肯定要去别的车上干活。这个逻辑是没有问题，但是我们还是会去讨论一下关于降价的问题”