What do you think?

I have been playing Halo 5 since a few days after its release and still play it rather frequently to this very day. As a matter of fact it was the first game i bought after i purchased my Xbox One i believe. Well either way after having spent a hefty amount of time playing Halo 5 and all it has to offer, here are few suggestions of changes or additions i would like to be made or i think will make Halo 5 a better game than it already is.
HALO 5 GAMEPLAY SUGGESTIONS(Revised):
Dual wield weapons??
Redo the upgrades given by the number of REQ points in Warzone Firefight?
Change the single-use boost on the armor to a double boost?
Incorporate custom loadouts to Warzone Firefight instead?
Bring back any and all multiplayer maps from previous Halo numbered entries in a new dlc package or somehow.
Double Turret Warthog SUV’s?
Add new multiplayer mode where players have to keep kill count going or time runs out before they have to respawn incorporating super fiesta rules?

Let me know if you agree. What do you think???

While I always want all the maps from previous Halo games, 343 won’t do that because it’s a lot of work. As for everything else, I don’t think any of it would work in Halo 5. Also the description of your “new multiplayer mode” doesn’t really do a good job of explaining what it is.

Well thanks for your opinion.
I still think they should bring back the maps.
The different mode comes from a similar mode in a different game.