Do REQ packs disappear if you keep them?

Games Halo 5: Guardians
1

I’m currently keeping my Arena packs until I finish silver packs, and I’m worried they might disappear eventually. Does this ever happen?

2

of course not. I save them up too

3

No, I there is a limit to req packs that you can have at once, but it is really high so yiu dont have to worry.

4

Ah, ok, thanks guys.