Hi  - there is only  (random) chance of earning a medal if you meet those conditions - not a guarentee.  

http://fm.en.kupaisky.com/Store/Overview.aspx 

1. f you only meet the following requirements, you will have a chance of receiving NF medals.
   Requirement :
   1) Win the battle from Blitzkrieg, Great Battle or World at War.
   2) You must win the battle and stay in the battle room longer than 4 minutes.
   3) A minimum of 1 attack amount of shooting down 1 aircraft is required to be eligible.
    
2. From Blitzkrieg and Great Battle,
   Normal players will receive 2 medals from the battle.
   Premium players will receive 4 medals from the battle.

meeting the requirements means you qualify for the lottery list drawing of the random spinning honor medal drops


its a random drop (for those in the qualifying pool)  - you do not 'earn them'  - they are drops



what you earn     is your chance to be in the medal drop lottery pool for that battle room game