Sloppy coding, incompetent developed decisions, SEVERELY unbalanced class design (as the oodles and oodles and oodles of map and weapon changes over the years have tried desperately to make not AS bad, but you just can't fix something that wasn't meant to be made in the first place), over-abundance of unnecessary community splicing (I.E. giving some players access to a ♥♥♥♥ty beta while ignoring the rest when in fact what was being "beta-tested" was releasable in terms of the terrible quality the mod already had going for it anyway), and a HEARTY amount of community theft. Stealing maps from ex-devs who left years ago, but claiming it a NEW map (check the REAL author for tortuga and when it was made, you will find it was created around 6 years before it was actually released as a "new map"), constantly desperate to take maps made by the community and make them official so the dev team can avoid doing any real work, even if said maps don't fit the theme in the slightest, or are fugly as hell and need dozens of revisions (which plenty of the official maps already get anyway which says a lot about their confidence in the first place) and to top it all off, the dev team has had a LOAD of behind-the-scenes drama with each other AND its own community. The biggest of these countless examples would probably be them giving the finger to the ORIGINAL CREATOR OF PIRATES, VIKINGS AND KNIGHTS on the goldsource engine, ultimately showing zero respect for authors of ACTUAL creativity (as is still practiced by them with their map theft and content-copying) considering the majority of everything created was based off of someone else's work, including multiple maps, biggest example obviously being bt_island.
Avoid this ♥♥♥♥ at all costs. It is garbage, and is made by the embodiment of quite the same. Anyone who has gotten cozy with this mod for longer than a year prior will know this very well, and thati s why its playerbase has died off for very very VERY good reasons.