i'm wanting to make a edit in 2fort for a joke with my friends. i decompiled it myself but the culling was very broken, only showing the rooms i was in, then i downloaded a decompiled version from here and it still has the same problem, anyone have a solution or a properly decompiled version? (it's there but doesn't load in till i hit a trigger and it unloads the area before it.)
Sounds like an Areaportal leak. All Areaportals must seal each "area" - in other words, it should be impossible to draw a line from one side of an Areaportal to the other without going through another Areaportal - otherwise they will leak. You can try to fix this by manually checking each Areaportal and seeing if they're messed up or, if you're not too concerned over a slight performance impact in-game, you can use the Visgroups on the right-hand side of hammer and turn off Areaportals.
i think i may have found another fix but if that doesn't work then i'll try to figure out what that means
Maps don't decompile correctly because for many things the decompiler has to just guess. No decompiled map will ever work right without doing some work on it. You should learn what areaportals are, because I'm guessing your alternate solution is not actually going to work out well.