The most annoying level

[Shadowth117]

Halo 2's Delta Halo on legendary difficulty. Dear god, most of that campaign on legendary was difficult in general, but there was a lot of annoying parts in that level. Right out of the first area were a few sniper jackals that camped the pathway (impassible hills on both sides) to the next area from the opposite side. Not only could they instakill you, but they were also very unlike later versions of the enemy in that they would stay in one place and NOT move. You poke your head up for half a second then you are GONE.

Another area in the same level put you in a sort of small valley with some caves and cliffs around. Not only were there a few elites, but IIRC there was also a number of jackal snipers. The drone army that attacks you later doesn't help since they would just rape you immediately with massive amounts of plasma pistol fire.

Its probably one of my favorite levels in the series, but on legendary is also one of the hardest in my opinion.

A close second for me was probably in COD4 the epilogue level on veteran. Dear god. You have 1 minute, 30 seconds to get through the level. Because of how its laid out, you must run through this level near perfectly. Not even any frag grenades to help you. You do have some flash grenades, but since on veteran you have to get it within 2 feet of an enemy for it to actually affect them good luck with that. Its a good thing that game had a little bit of an auto target if you double tapped LT or L2 depending on your console because you needed pretty much every advantage you could get to do that level. Still, its not nearly as lengthy as most difficult levels so it doesn't bother me quite as much.