WG EU has posted an official version of theupcoming platoon reward/penalties:
“Bonuses and penalties of EXP for platoons by results of a battle
With the release of update 9.15 , coordinated tactical action of players in platoons will be encouraged. Participants of a formation consisting of vehicles of the same Tier will receive XP bonuses. And the platoons that have multi-Tier vehicles (the difference between the maximum and the minimum Tiers is more than 3) will get EXP penalties depending on the difference in vehicle Tiers. When trying to roll out to a battle on vehicles of different Tiers (with the difference more than 3) players will get a warning about the incorrect selection of vehicles.
The XP bonus will be given to the platoons that consist of vehicles of the same Tier. The award depends on the result of battle, victory or defeat, as well as on the Tier of vehicles in a platoon. Dynamic platoons created during a battle will get XP bonuses for playing with vehicles of the same Tier starting from the next battle. If a player joins a previously formed platoon, they will receive an XP bonus only starting from the next battle if necessary conditions for this will be met.
经验 奖励会给予组队中战车等级全部相同的玩家。奖励比例取决于战斗结果胜利或战败，以及组队战车的级别。战斗中创建的动态组队也只有在同级且从下一场开始才计 算经验奖励。如果一个玩家加入之前建立的组队，之前组队中的玩家也会从下场才收到经验奖励（建立动态组队的这一场不会有经验奖励）。