The networking is the most frustrating thing for the lack of skill gap and they've put so many host friendly weapons into play that skill isn't one of the larger factors.
I'll put 8,10,12 DMR headshots into someone before their shields FINALLY come down and then still have to put more shots into them for them to die only to have some AR scrub pop around and kill me with 3 body shots from cross map with full shields, full health .... really? Been bolt shotted from cross map a couple of times ..... really? Meanwhile it takes me 4 shots point blank with scattershot to kill, a boltshot directly to the head may or may not work, I pummel reflexively now and they have elected to give chasers the holy grail with the stutter step.
I really consider Halo4 nothing but COD with shields but .... it has massive potential.
As for whoever it was that wanted to 1v1 me; if you live in Tennessee, fine. If not, then no. Not dealing with networking issues that 343 has failed to resolve. According to a direct post from one of their forum mods, their networking algorithims favor some connections over others and it has nothing to do with speeds. At least if we're in the same state, we get a good idea of what's really going on. I have friends of mine on the MLG circuit and I 1v1 them so I'm more than happy to do that if we're in the same state.