I’m sorry you want to oversimplify everything, but you can drop the semantics lol.
You can disagree with my statement, but the gameplay is far closer to what Halo was at the end of its prime than 4 and 5 ever hoped to achieve.
That constitutes an experience that is closer to classic, even if it isn’t quite classic.
Nonstandard refers to stuff you don’t start out with.
Halo 3 introduced nonstandard equipment that were direct killing implements.
Reach expanded upon it with armor abilities.
And every Halo had different weapons alongside familiar ones.
Standard to Halo 5 if every player started out a match with them.
Well then that’s just going to have to be a point of disagreement then. I’ve never enjoyed the oddball gamemode until Infinite, so it is what it is 
Ctf is only 5 in ranked.
I too want some KotH action if I’m being honest. Strongholds is fine, but KotH is pure gold.
Modification relies on an existing base.
Reinvention builds something from the ground up.
I guess mutation would describe Infinite better than modification. There’s a visible influence rather than a visible base.
By a very small minority yes. Metacritic user reviews paint it as mediocre at best, and population counts were so bad we had to rely on API data access rather than official sources.
It may have been a popular part of the game, but Forge isn’t what Halo 5 is built upon, it merely stands out as a great feature among a mess of mediocre or ill received features.
5 Forge is an antique gold Rolex watch paired with an ill fitting Goodwill suit with brass plated plastic cufflinks. By itself its incredible, but it’s merely a stunning accessory on top of a cheap presentation.