It's epic but shy of perfect. It lacks some options, some armor abilities & vehicles may need tweaked, and as I thought, Halo 4 is a very different game than all other Halos.
The most similar Halos being 2 & 3, this makes certain that Halo Reach & Halo 3 aren't obsoleted by Halo 4.
Now the changes to some of the vehicles range from slight upgrade to nerfed. The banshee has been nerfed perhaps too much, & the Gauss seems to have a bit slower fire rate as do other vehicles. The ghosts guns seem more powerful but I'm not sure.
Most things in this game feels pretty good but some things may just need some getting used to.
Or not.
Time will tell.
I do love how they applied the RPG element & the Campaign is sexy & I know it.
After that, Spartan Ops will add additional intrigue each week.
I'll have to remind myself and others to hunt achievements & challenges.
I'm lovin it, like Mc Donalds. Not that I particularly love MD's but you should get what I'm saying.