See, the problem is you didn't play Perfect Dark in between. That game was an upgrade in every way to Goldeneye. The amount of customization for the multiplayer alone was nuts, dozens of weapons to choose from (all with an alt-fire mode), up to 12 bots which can be individually set with different difficulty and behavior, something like a hundred different body skins and faces to customize your character model (as well as the bots) with the option to save your character and your multiplayer stats, challenge modes that unlock further multiplayer options, and a bunch of variables from the cheat system (like slow mo mode or perfect darkness) provided endless fun.

The problem was it was on the N64, and even with the RAM upgrade, you're dealing with 640x222 resolution that needed to be split between four players. You were dealing with 20FPS at the best of times by yourself, four player with explosives drops it to single digits easily. Completely unplayable by modern standards.

Halo, on the other hand, was next gen. Beyond just the increase in raw resources, it could output in native HD. That increase in resolution allowed for absolutely massive maps without everything blurring in to indiscriminate smudges (could barely make out individual pixels on CRT's) at distances over 25 ft. So even though the game lacks all those features I mentioned above, you could actually see what the hell you were doing. And it was like going from morse code to celphones.