First of all, don't double post. Choose one forum and stick with it. IF your post is deleted and you feel it was unfair, then you may consider posting again elsewhere. Not before. Just save a copy of your post to a text file if you're worried about losing it.
Secondly, think about WHY you're worried about your post being deleted. If it's downright insulting then it probably should be. Granted, you seem to be expressing some valid concerns here, but you seriously need to work on your people skills. And that coming from me is pretty bad.
As for your claim OP3 is just taking OP2 graphics and making them 3D, I really have to question your logic here. From a technical perspective, you just CAN'T put 2D graphics in a 3D game. It just doesn't work. There would be no reasonable way to accomplish this. If you check out their work so far, you'd see they are building their own 3D models of buildings. They are doing this from scratch, based on graphics from earlier games. How else are they supposed to do this? If OP3 is going to be a sequel of OP2, you'd expect the graphics to be highly related in terms of the appearance of buildings. I see no reason why a tokamak in OP3 shouldn't resemble a tokamak from OP2. It just wouldn't make sense otherwise.
I'd also like to point out there is a thread for unit suggestions. All the "bad cool" ideas get shot down there. If you're worried about them, that's where you should go to suggest against them. By this, I of course mean make a case against adding them to the game, and not just call people suggesting them idiots. Not all suggestions are made with the expectation that their unit will be added. Sometimes they seem to be there to spark further ideas, and sometimes people just want to suggest something for fun.
Reading dev documents and from the game itself
What dev documents? From OP2 or from OP3. If they're from OP2, then perhaps you'd like to share them with us? And if they're from OP3, I can't fathom why you'd be bringing this up. As for your suggested design, go ahead and submit them. I'm sure they'd have loved the attention. But keep it mind, it would only be taken as a suggestion. They are the ones putting in all the work, and they are ultimately the ones who will decide what is done.
I think it is my responsiblity to help guide this project.
I fail to acknowledge you have any right or responsibility to guide the project. You have done no work on this project and your post has only served to demotivate the people who have done work on it. Yes, I can understand worry of a failed project. They've gotten enough about that already. Nobody wants the dissapointment of another failed project. People have already expressed their concerns about another failed OP3 project, and these people are still willing to give it a try and are going strong. This sequel is something people want. I can understand your concern about destroying the idea of Outpost/Outpost2, but remember we are all Outpost fanatics here. Nobody wants the idea of Outpost to be destroyed, and people are going to make sure that doesn't happen.
So if you also want to make sure the project goes well, then know your place and make suggestions accordingly.