Basically, I'm training MMA, Muay Thai and BJJ most days of the week. Structure this around work and I am left with little time. I'm a complete beginner in strength training and Starting strength is kinda out of the question because I can't just do that, and squating 3 times a week with what I do already might kill me. HOWEVER, I am willing to invest in a cheap squat rack, bar etc. so my question is, can I make significant strength gains, that will improve performance by just squating and dealifting heavy 2 times a week?