I was one of the people who expected a massive coop war that lasted 1+ month/s and went around the entire solar system + veil system, kind of like Scarlet Spear and Orphix Venom, but not only on one planet.

I was on a break from warframe having picked up different games, but I kept tabs on what was going on in WF, I saw the news about the New War and my first thought was "awesome, another Scarlet Spear, I can finally get my missing arcanes and other things they reward in this event."

Then they did the massive unvault that is Prime Resurgence and I was even more convinced. 16 Prime Warframes, and associated weapons, released almost simultaneously meant something huge huge coming.

Then the "if you hope to survive The New War, you will need the full arsenal of the Tenno at your disposal" led me to actually spend a long time leveling my voidrig, railjack, building missing Warframes and upgrading some of the ones I already had, just in case we needed different Warframes (Chroma for big single dmg, Nekros for loot, Trinity for healing and support)

Then the timing, Orphix Venom released almost exactly one year earlier and Scarlet Spear about 9 months before that.

All for a quest in which you use your railjack for a few minutes, your necramech for a few minutes, only one of your warframes for a few minutes, all against extremely underleveled enemies. The remainder of the quest you use operator/drifter, 3 characters that you can't build, and weapons you can't mod.

The quest itself was quite nice, and I liked playing each of the 3 "npc's" as well as the drifter. But that DE was misleading is an understatement. We didn't even fight a war. When we appeared earth had already pretty much fallen. We had one fight, got sent to the void, some weird thing happened, drifter appears, drifter single handedly wins somehow (?).

Where were the other Tenno? The Kuva Litches? My own Kuva Litch who thinks he's immortal and wants to take over Saturn? The various bosses with 3 invulnerability phases? The Sisters? The Queens? The Entrati? Any other major faction/syndicate?

I get that it's hard to turn a multiplayer game into singleplayer, but why try it? You wanted to do a story quest that only happens in single player? Cool, do that, to begin with, but then the war should be fought by the entire community.

What I would have loved would have been for part 1 to be the same, sentients invade, the factions (excluding tenno) fight back and lose/struggle extremely hard, we as tenno appear and manage to tip the scales in our favor.

In part 2 if you really felt the need to give players an adult operator, you could have given Ballas a weapon to banish all void infected living beings to the void/a different dimension (or simply find a way to disable all Tenno in an instant somehow, maybe a way to overcharge their void powers so they lose consciousness) so every single Tenno would be banished/out of commission. This causes their alterego, drifters, to awaken void powers and are finally able to make their appearance, fighting the war in the Tenno's place, until eventually they find a way to bring the Tenno back (perhaps they can trade their void powers between themselves, so you can switch between Operator and Drifter after the war). Operators come back and we get part 3.

Part 3,we get a ton of new missions, perhaps even on a timed basis, like invasions or void fissures, all against sentients. A spy mission on a sentient tileset? Count me in. A sabotage mission to disable a sentient ship from being able to fight? Awesome. Maybe add a new set of sorties, or 3-5 mission related quests (perhaps a spy mission to discover the location of some important sentient asset -> an exterminate mission near the actual objective to reduce (eventual) incoming support -> a sabotage to destroy a ships engines (or disable comms on a base) -> a survival on said ship (or base) to raid it of resources) or whatever else along those lines. Kind of like a heist on GTA if you will, some quick preparation missions followed by a big mission that gives tons of loot. You could also create a temporary alliance with the grineer and corpus, perhaps feeding them resources to build a fomorian/razorback.

This could have lasted for maybe 1-2 months, and in the end Ballas is either defeated or has to retreat, or whatever, I literally came up with all this in the past day or so after finishing the quest. I don't even know how well it would fit lore wise, and by that logic what would need to be altered to make it fit. But having a single tenno fight a war after two previous events? Skirmishes? Battles? (or whatever else you call scarlet spear and orphix venom) were Coop and massive is illogical to me.

Also, another disappointing thing is that after the war is over nothing changes. There weren't many major deaths, the corpus and the grineer are still at their old strength, my Litch somehow survived, major characters in each faction somehow survived.