Hey man. I had trouble with the bastion card as well. Not sure if this will work for you or if it's the same problem you have but I had to play a full game on the map to unlock the card. (I just got the card today)

Yeah I also got it yesterday, it wasn't working before though, not sure if they fixed it or not, I had played both quite a few times before yesterday, full matches and what-not. But it seems to be fixed now. I wonder if they fixed any other grimoire issues.

First light and bastion are in the combined arms playlist. If you have played them, and the card is still not unlocking. One thing you can try is While destiny is open, go to settings, change profile (next to where you change character), log out of your profile then back in. This [u]sometimes[/u] updates grimoire and achievements and forces them to pop. Good luck guardian