Assault Character Skin - United Albion

So, I have opened and collected 3 of the 4 classes for this character skin. The fourth however, for the assault class requires me to complete the following in Battle Royale. 

Get 15 kills with vehicles in BR

Access 3 vehicle trailers in BR

Ridiculous decision by the developers, I did not buy the full game to spend days grinding challenges in battle royale. I don't play battle royale yet am being forced into doing so. Developers, please consider making this challenge easier, and located within the main game. Battle Royale may be great but don't assume we all want to play it.