Halo CE was just annoying. Having that common scenario of one bar health going against two elites and an assload of grunts. And the flood was just annoying because they'd get right back up at random. Halo 2 was a tough game all around. Few encounters were easy when not geared up right, and enemies were not going down without at least seeing a single tear run down your cheek. And the mental fortitude required to not cry when going down jackal alley on outskirts..... I'll stop before the PTSD kicks in. Halo 3 wasn't too hard. A nice fun challenge if anything, only ass mission was Cortana but even then it wasn't too bad. Halo 4... Now that's just funny. Halo 5 only had like two moments that were hard and they were in the span of the last two levels. Everything else was fine. Halo 3: ODST wasn't bad as long as you had a plasma pistol 24/7 and either a carbine or a magnum, just couldn't forget to look up at the rooftops now and then. You could skip like 75% of the mombassa street engagements by just running away. Halo Reach was another challenge that wasn't too hard. This is the only game where I ran the LASO difficulty and that is just absurd... Anyways the base legendary was just right except for the very last part on the mass driver and all 9,000 phantoms and banshees. Halo Wars on legendary had to have been programmed when Ensemble was in some kind of satanic mood... The AI has their units fully upgraded before you even have a single scorpion, and they will kick your ass. I think I had 5 power turret tanks, 3 spartans included, drop to 2 or 3 hunters because they just wouldn't die.... The campaign is relatively hard, especially on anything with a time limit, but still fun in its own demonic way.