Honestly
, I didn't want to play this to not inspire myself for what I would like to finish. However, I've learned what not to do.
prologue:
-hahaha, this is really funny; it looks like a joke, making Arthas and Nerzhul so naive. Ner'zhul wouldn't have wanted Arthas to stop from killing the meaningful opposition
-the cinematic mode has latency before it goes on
-Naga units are rescued during the scene
chap1:
-Illidan was fighting Arthas in a fair duel without any troops there; it was specifically shown Illidan was left bleeding alone; there were no others
-really!? Start with level 1 and the same spells!?
-crates everywhere; what the heck is this? Did the belves go wagon frenzy and dropped everything by accident or not while fleeing?
-I guess the second Snap Dragon was hiding not sequestrated by undead
-now that was unexpected, a Tuskarr in an igloo

or a Murloc

, sorry Mur'gul
-Illidan doesn't seem tired or hurt or anything after his battle with Arthas
-you could add some weather conditioning that from time to time decrease Illidan and his group's HP; the runes and other items found would be used to refill that lost HP
chap2:
-build a base? But Illidan's base hasn't even been touched in TFT; but I get it. You wanted to introduce the player to the Naga like any other race in the original campaigns
-enemy units don't start with full mana; don't know if intended or not
-why would undead take prisoners, especially useless ones? They usually raise dead to bolster their forces
-it seems the undead not only locked the Naga workers but resources as well
-Main Quest: Destroy the Crypt. Did they even know there was a Crypt there? Why would just a Crypt be so important?
-so, finally they decided to open the gate and come party;
-wait, Hall of the Highborne researches Naga upgrades!? Not only that but they're practically extinct or mutated or lost their tan; the thing is Naga are not the Highborne anymore
-so, a Furbolg would trust an odd (demon) looking fellow like Illidan to save his son from trolls? What makes him think he won't sacrifice his son for some demonic ritual?
-the AI attacks in this level are senseless; do they only attack with useless Gargoyles?
-instead of doing an ambush and coming bravely to defend their village, the retarded trolls came after everyone else was dead
-why/how do Furbolgs understand Illidan and the other way around? Is there really a common tongue everyone knows or are they all mind readers?
-but really, four trolls is not even an ambush
-units selected during the scene where the Furbolg's son is met
chap3:
-not sure how Vashj swam in that water; I guess it wasn't for five minutes to reach the place she did; did Mana Shield protect her?
-dude, really? Level 1, same spells?
-what Mercenary Camp? Who informed Vashj about that?
-it's not like a Myrmidon wouldn't be able to smash a frozen wooden gate
-10/8 ships destroyed

-why are they running? Naga don't have the notion, maybe a trap?
-shouldn't there have been undead lying on the ground when Vashj met Kael? There was that undead group that went east when Vashj said they were running
-come on, Kael is no retard! He could do that on his own, not having Vashj order him like that...
-well, might as well let Vashj order him but he ain't even using it on enemy units
interlude 2:
-hahaha again. So, the idiot Arthas didn't go to merge with Ner'zhul because he wanted Illidan dead first but Ner'zhul specifically lowered his power to make Arthas come to him and not waste time with Illidan. LOL
chap4:
-"must be one old base of mine". Is Vashj starting to suffer from dementia?
-so, Kael's logic was it would be easier to defend against undead divided or was it that he was madly sure that place would be the perfect strategic point?
-Hall of the Highborne has a nelven building's soundset. An owl can be heard; it's not very nagaish
-hmm, that turtle can swallow a whole Abomination
-so, here is where Alleria lost her flute, in Northrend!
-seriously, you've got to stop spamming barrels and crates; it's so unreal
-OK, you've annihilated the Devouring technique towards the creeps to Vashj's destination
-Scepter of Healing!? If this one goes on the next levels too... such an advantage
-basically, most of the level is fighting static creeps that live on the road
-Vashj didn't run at the end. Instead she started swinging the bow tie
chap5:
-Illidan preparing an army in Northrend against Arthas!? If he still had one, it would have come for Arthas then instead of having to cower in the woods
-what is this stupidity line I'm seeing often in campaigns, "we have to free said person before it's too late"? If they wanted to kill Vashj, they could've/would've done it on the spot, not wait for it...
-Anub'arak doesn't use his ultimate and doesn't defend his base
chap6:
-I'm surprised no Naga Royal Guards yet
-this level is easy. They don't even have one hero... just one base...
interlude 3:
-no comment
chap7:
-did they also reproduce in the process of building that base? The major force has to go to meet with the others not protect that base
-it seems Kael gained 7 levels building a stupid base
-your puns are nice
-how did a Banshee possess a creature that is immune to magic

? Also, how was a unit that's higher than level 5 possessed? At least, the didn't possess any of mine
-I guess, the end force could be a lot stronger since: Mammoth+Ursa
chap8:
-why are the Nerubians allied with the Scourge?
-I suggest more HP and mana for the Nerubian boss cause... it's so much weaker than the Revenant boss
-even the Faceless Ones are in allegiance with the Lich King!?
-Faceless boss wannabe is also a weakling
-only the heroes can step, I mean lower the switches..
-what the heck are orcs doing here?
-the linearity and monotony; even the terrain is the same
-even the Dragonspawns are with the Lich King...
-Skeletal Mage but doesn't have mana or cast spells
-why is Illidan affected by the Trueshot of Alleria's Flute when he is not ranged unless Metamorphosis is active?
-basically, after the trio meet, enemy unit groups should be more than before
-Banish is more than useful against Arthas
-no final words? Ends just like that, with victory
2/5. Sorry. It's repetitive. Even the end stage wasn't too good.