To me the perfect Halo 4…
Has as many levels that are long as Halo 2
But the size of Halo 3 and Reach
With the battles closer to Halo:CE and Halo 3
With some open areas like ODST
With a story as deep and interesting as Halo 2
But with the atmesphere of Halo:CE
That awesome music from ODST
As many weapons and variety as Halo 2 and Halo 3
With the balance of Halo:CE
The Human to Covenant difference in Halo Reach
A huge selection of enemies like Halo 2
With the A.I like Reach
Allies like Halo 2 [seem to be the best in most cases]
All lookin like CE troops…