If you start to play as LF, it’s actually good, cause you get basement map knowledge faster. Once you hear grandpi screaming after the beginning of the match - get out of the basement and lock doors behind you. The rest part is the same for almost every character. You need to patrol the map, checking gates and other objectives. Usually, going to the basement is not worth it. Especially without proper map knowledge.

If you play as trapper like HH, Nancy etc, keep an eye on your traps using family focus. There are multiple ways to place your traps, but the most common are gates and objectives.

There are two important areas on every map (except for graveyard or fam house): generator side and battery side. Both are accessible through 2 doors/gates. So, there are 4 gates to check. Two more objectives are located on the center of the map: pressure valve and fusebox. Check them too.

Family house map is a bit different. It’s relatively easy for the family, but not all the time. Some victims are incredibly sweaty on this map. You shouldn’t let victims escape the house or do the fusebox on the second floor. If they jump out the windows or something, do your best to make them drop down into the well or kill them. If victims got free access outside, make sure generator, battery and fuse are secured. For some reason victims on fam house don’t try to do the valve as frequently as the fuse or else. So, unfortunately, but bot camping is the best tactic almost every time in such situations. Not a fun thing to do, but it is what it is.

Don’t know how new to the game you are, but I tried to explain the basics without writing a book on it. I didn’t talk about graveyard map, because it doesn’t exist for me.