seatfan said:

I sent 3k stalker scouts, I lost half and my opponent only 4. How is that possible? how to send a photo This is once again the strange behavior of the game.

Hello Seatfan, 

A battle outcome depends on the multiple reasons e.g a type of a battle, different active bonuses on your and on the side of your opponent etc. 

You can insert a screenshot of the battle in reply to this thread so that we can check it.