How to get ssr universal card for free in behemoth battlefield

The way to get ssr universal card for free in the behemoth battlefield is as follows.

1, level reward, this level reward is the command center level of the base.

2, field, field, I suggest you give priority to gain confidence through the intelligence center.

3, the legion award, although it is said to be a legion award, but it is still difficult to get.

4. By logging in, this method is relatively simple. You just need to remember the daily operation.