That FaZe intro was totally done in after effects...or at least I can say "after effects can totally do intro's like that". I'm not an after effects wizard, most of what I know I learned through YouTube tutorials.
I can tell you that there are A TON of free after effect intros out there. Search and you will find something you like. Most of them work by opening the project in after effects, search for the layer where you add your text i.e. "THIS IS MY CHANNEL SUPER CoD GUY", and then export to adobe media encoder. It's just that easy.