Here is Collins' first collegiate series. It's impressive in its own right for a kid's first ever live bullets at defensive tackle:
1st and 10: Collins is lined up in a 3 technique. He's pretty clearly got a stunt on, because he shoots from the 3 technique into the A gap, which turns out to be a pretty bad stunt against what appears to be outside zone. But he's never really blocked, due to his quickness. You can see the guard flail at him throughout the gif. He recovers from the stunt (although only after getting waaay upfield) and makes it back to the ballcarrier to help with the tackle. If you watch closely, you can see BJ Foster help clean up the tackle, too.
2nd and 5: This is Collins's best play of the (short) drive. He's again lined up in a 3-technique and again stunts inside the guard (Sweat, playing 1 technique, stunts, too, so this was called and is not just Collins stunting every time). His stunt is so quick, both the guard and center have to catch him, and he almost splits their double team. As a result, neither lineman can gain any traction to get a block on the second level (in fact, Collins pushes them both back a yard and a half). As a result, when the ballcarrier turns north and south, Overshown is waiting for him in the hole.
3rd and 3: The DL runs the same stunt again, slanting to the weak side of the formation. Jacquess and Overshown both attack their gaps, too, and the line of scrimmage becomes, basically, a wasteland of felled UTEP linemen. Adimora does a really nice job of keeping his inside shoulder free, which forces the ball carrier to kick outside instead of finding a gap off tackle. As a result, Josh Thompson is free to clean up the ball carrier, and he does a really nice job of demonstrating Ash's rugby tackling technique--instead of the 2019 tackling version of launching himself at his opponent, Thompson attacks his inside leg and hip and lifts the knee to stop the ballcarrier's progress. While it would've been nice to see Thompson keep his legs moving and drive the ball carrier to the ground, Thompson's work gives Adimora plenty of time to help clean up the tackle, forcing a punt.
Here's the reply from the All-22 angle. You can see Collins speed again gets him past the guard, but the ball is going outside, so with so much trash at the line, he basically just makes a pile. As a result of Collins' pile (and Sweat getting moved by guard/tackle combo block), Overshown misses a potential run through opportunity. Jacquess and the sniffer back pretty much just headbutt each other and fall over. BJ Foster basically does nothing on the play except patty-cake with the right tackle. Ossai is badly held at the end of the play, or he might have gotten to the ball carrier before Adimora. You can really see from the All-22 how influential Adimora is to the ball carrier's pth. Because Adimora stays in his gap--and inside the tight end--the ballcarrier has to take a wider track, leading him right into Thompson's open arms.