how to enable vct mode

how do i enable vct mode to watch through walls??????????????🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔

oh NICE NICE 😡 GOOD JOB CALEEEPSOHOHOHHOE 😆 I STARE AT THE WALL 👀 I STARE AT THE WALL 👀 I STARE AT THE WALL 👀 IM A FUCKIN ''''' I STARE AT THE WALL 👀 I SEE U ON THE MINIMAP 🗺️ YOU-YOU'RE NOT CALLING OUT 🗣️ THAT ITS WALLED 🧱 VERY UNLUCKY BLYAT 🍀 I WANT TO PLAY FAIF STEK AND BOOST 📈 SHUT UP ROSSI UR HORRIBLE 😡 🔥