They’re running a pre register campaign for the PC version of MCOC. If we get 200k pre registers, it’s a free 7 star, 5000 7 star shards, and a bunch of tier 6 cats for valiants. As long as you pre register, I don’t think you have to actually download the PC version to be eligible for the milestone rewards. Re-iterating this post from another OP so it gets more traffic. All you have to do is enter your email. Link below.
https://playcontestofchampions.com/pc-pre-reg/?utm_source=mm&utm_medium=mm&utm_campaign=pc-prereg&utm_content=pc-pre-reg-announcementSide note: if you aren’t valiant, I believe it’s like an abyss nexus or something, so still good rewards across the board.