A majority of the (gaming) industry is written with C++, depending on what you’re trying to achieve, what language is used will vary wildly (I’m a CS major too).
If you want to learn a bit more about the Industry, I’d suggest going to Turtle Rock Studios’ forums and reaching out to Lianne (Snowkissed) and Steve (Arpharazon). No offense to the guys and gals behind BM, but they’re usually radio silent except for a few people.
The two people that I mentioned I got quite a bit of info out of, and they’re usually pretty chatty. So long as you don’t look for specifics on their projects they can tell you quite a bit about the industry as they’ve been in it for quite a while.