Why does the new update make the game harder to play?

Problem number 1, the game took 2 hours to update to season two. (I’m complaining about the download time is because it took all afternoon to see if I still had my season 1 Battle Pass.)
Problem number 2, the update took up more storage than all of Halo 3.
Problem number 3, some weapons are super OP now.

The only reason I was worried about the pass was that I’m, on level 45 and I’m trying to get the ODST helmet and the Jorge Armor kit.