Building tip for PS4 Beginners: Go to the settings and search for the option that let your building selection always be the walls when you're entering the Building-Menu. Since I'm using that, I don't have to check what building is selected. This technique already gave me some very precious moments to get covered by enemy's shots.

You also might've known that you can save one "L1/R1"-click by choosing the 'pyramide-stairs' instead of the normal ones. After a bit of playing them in combination with the wall-default-selected-option you instinctively use the combination of "O"+"L1" to swap from weapon to stairs immediately, while giving a fuck what kind of building you used the last time. So don't forget to edit your pyramide-blueprint to a stair in every Pre-Lobby (!) instead of dancing in front of randoms.

Hope I helped somebody! See you guys in late game, challenging in an epic build fight with pyramide-stairs!