3k is frankly a very slow game for TWC and has hardly any audience here (even in general it seems that way). Replies will likely be delayed if they come at all in this case: your insights will ultimately be what other people end up finding with the same question if you've already looked it up and haven't found something of use elsewhere. If the campaign was flagged as easy (relatively, in starting position) perhaps your hurdle is being too ambitious in othersettings? I'm not familiar with 3k but it may have altered the difficulty scaling and playing with that would be an option until you have your bearings. DLC campaigns tend to expect higher competency than the base game but it shouldn't be prohibitively difficult to open with for someone of your long-term experience around the series. I know this is extremely broad, hopefully someone with specialized knowledge will come across this.