Gaming Unicorn Chomper - GWF

[temps]

Hi, my son's asking if there is a method to get the Unicorn Chomper in GWF .... apparently it is possible in a matter of hours if you know what to do - can anyone tell me (him) what to do?
Thank you

 

[wurstpistole]

The Unicorn Chomper is unlocked when the player reaches rank 313, the maximum rank in Plants vs. Zombies: Garden Warfare, prior to February 2017.

 

[temps]

Thank you - yes, that's right, I think there's a method of getting to rank 313, it only takes a few hours apparently. And you're right about the deadline too. So I'm really asking about the method of getting to that score. I've googled it and someone's offering to sell the character on ebay, but that's a last resort. I'd rather he finds out how it's done - so, if anyone knows the method or where it's explained, I'd much appreciate it.