My least favorite DLC is Zeta, but I hate so much about it that I really have no solutions to making it fun for me. However, my second least-favorite is Operation Anchorage, and I've been doing extensive work to make it more fun over the past few weeks, tacking the problems of "oh god, it's exactly the fucking same every goddamned time i go through it!" and "I'm objectively useless in OA unless i've got good Guns skills." I've got no ideas for "Go away, Necessary Companion, I hate you" currently, but since i only have to shoulder the burden of incompetent AI until i get to HQ, i'm not terribly worried about it.
however, I'm not the entirety of the TTW community (contrary to unpopular belief that everyone on here is me except for you), so unless there's a way to collect all the bitching into one area to sift through and sort out, the only way the modders around here can make fixes to your pet peeve DLCs is by sitting around waiting for it to show up in the various chats and then guessing how big a problem it is.
be warned, though, that modders tend to see the world differently, and if your suggestions are simple enough to make on your own, you'll probably be told to do just that. also, modders are people, so "simple to make" is completely subjective.