I want to know.

Ectar:   without a replay its very difficult for anyone to explain what happened. The calculations for shots and the content of the maps is all stored server side.  For a player to shoot through the terrain as you claim, means we have a pretty major problem with server security.  Also if the player really could "hack" the game like that, they're not going to wait till the last minutes of a match when they're one on one. This would be abused from the start.   It's likely the player backed off and took a blind shot in the first situation, gambling that you stayed still.    In the second scenario, again it's impossible for a player to "hack" the armour value of a tank or the penetration value/damage value of their shells.  This would once again be a massive problem on our servers because that information is not held locally on your client so the data can't be edited by a player (like say a DLC map can be manipulated to allow speed hacking or something on a console).   Sadly without a replay no one can explain what happened and without the replay you can effectively say anything happened in a match when there is no evidence and no one else can observe/review what happened.