lol these are awful
Not hating here, but seriously, there is just so much wrong with those. If youre new to mapping please dont watch these videos, it might leave you scarred for life.
First off, dont put interiors under the ground unless its really really necessary, it screws up a lot of stuff ingame, like showing names, ranged, etc. You got open world props with interior now thanks to bowman, why not use them properly?
Also, rule of thumb, when scaling props, dont scale one axis twice as big as the others or beyond that, it screws up the texture by stretching it too far. Same applies to uniform scaling, I would not go above 3 times its original size, because a medium res texture applied to a huge object is going to look really bad and low res ingame.
Another issue, prop spamming, while it might look cool building houses/interiors from scratch ingame, it does require an awful lot of props, each of which increases the fps lag of the map, sooo, try to be a bit more efficient/economic with your prop usage.
etc, etc, not using hotkeys, etc, etc...
/rant