I see what you mean, and the NPC thing would be interesting, but at the same time it is kind of like saying "ooohhh we hit a giant wall and we dont really want to waste time getting over it, event though there is some really cool stuff on the other side that many people would like, ooohh well, let us take the boring and predictable way instead, that is way more easy." (no offensivity intentet) and that sentence could also be used to IG, because of the problems they have with health and fighting capabillities against a CSM one vs. one (the fact that they fight better in great numbers). I think the Necron problem is a small thing that bE could fix if they sad down and talked to GW a bit, and as you said, there is not much about it in the lore, therefore more freedom to work with.
defiantly think it should be a NPC, i mean if you end up going underground to hunt Nids who is to say you will not find and awaken a Necron tome
Necrons are not slow, slower than others maybe but not really slow. And reanimation protokolls can be done, and it was already discussed by the community. They can not activly revive other Necrons, they have a passic reanimation. Of other Necrons are nearby they will reanimate over time. This does have disadvantages and advantages. Advantages Friends can keep shooting to cover the reviving one. (Maybe one self revive more than other races befor they are in the danger zone, but its far too early to calculate that) Disatvantage: It takes longer than other Races to revive. The lack of Weapons varitey can be solved by different classes, like Eldar.
heres a post I made on http://forum.eternalcrusade.com/threads/who-wants-to-play-as-necrons-and-why.1344/page-7#post-651354 theres been a few threads where possible Necron class line-ups have been discussed, this one is probably the best defined and the discussion revolved around finding comparative classes using the LSM classes as base roles from http://forum.eternalcrusade.com/threads/what-faction-would-you-vote-in-for-5th-founders-or-no.20904/ EDIT a quick google search shows 14 pyramid building cultures in Earths history so choosing 4 or 5 of them for different subfaction (Dynasty) armour styles/colour palettes would be easily enough for customisation, my personal favs from the list might be.. Sumerian (Mesopotamian) Egyptian Grecian Chinese Mesoamerican (Mayan) and if Grecian is too close to the LSM's look theres always the Javanese (Majapahit)
Well there are already some Necron Dynasties: http://wh40k.lexicanum.com/wiki/List_of_Necron_Dynasties And there is even a Female Necron Lord Xun'bakyr, Mother of Oblivion (Maynarkh Dynasty)
as much a necrons would be cool as a team to play they have set hierarchy with nor rank up system except pariahs which are outside there cast system to begin with. instead i think they would work much better as an additional team like Nids to change things up later in the game, which then sparks the coming of another race. it would give the game more varied PvE experience
Refering to things like, as a lsm you may go up the ladder say scout to brother to sargeant to champion to captain to whatever. But for an immortal, as you level up you are still just an immortal, I think it is more a reference to the lack of natural promotion you would find in the necron society.
Eldar is now cancelled, they lack natural promotion as well/it is not as good. Game is horizontal not vertical so Necron is an easy game balancer in a sense, and if i want to climb the ladder i can, i can play basic necron warrior and as i xp up i unlock weaponry passives and body passives,my attire changes in how i look as a seasoned warrior. There are ways and even if let us say an assault has his title changed and looks, did you change that much? you have a set of weapons to pick from, but you dont get OMG powerful, no you dont, so necrons can have different titles, titles that show seasoned you are in war, your looks will change too, *Points at RTS shop* all races have different looks. Otherwise, i can dig up a reason for every race to not even be there, some compromise has to be made, or are we giving middle fingers to IG, SoB as well because them fighting each other and the LSM is heresy?