I know what you mean, when I started Soldiers of Valor it was on Arma 2 with about four times as many addons as it currently requires, as well as Ace2 and AceX. When Operation Arrowhead was released I was able to significantly cut down on the amount of addons including Ace2/AceX by converting to OA, but that took months and significantly increased the development time.
People also have to keep in mind the intent of the developer. I considered making a vanilla version of SoV, but declined because it wasn't a true reflection of my vision for the project. In short, vanilla A2/OA just didn't provide the resources I needed to accomplish the vision I had and what I wanted to give back to the community.
For this campaign, I don't see how it would be possible to truly accomplish his goals without the use of community made addons. I do understand there is a crowd of people who prefer vanilla A2/OA, but those of use who create these campaigns in our spare time typically don't have the time or the resources to give everybody what they want. I've been asked for a vanilla compatible SOV, Ace2 compatible SOV, even an A2 SOV but with A2 addons. I simply don't have the time to create develop all of that, and honestly feel like the version of SOV I created is the best representation of what I envisioned, and what I wanted to create.
Ultimately this decision for Carrier Operations falls onto j_frost, but I just felt like putting in my own opinion and 2 cents
