Why are there only 3 maps in each playlist?

Games Halo 5: Guardians
1

Why are there only 3 maps in each playlist? Why are all the maps not in team slayer at least? Im tired of that -Yoink- coliseum map.

2

You want Orion? I’d give you Plaza but I like that map. Enough if I’ve played it six times already.

3

> 2533274883849234;2:
> You want Orion? I’d give you Plaza but I like that map. Enough if I’ve played it six times already.

Is Orion even in anything but SWAT?