After kicking the glass, you can grab one enemy and throw him into another, and then shoot the last guy
oh i didnt really knew becuase i forgot what the key was to use it anyways Thx For the Advice
Also, If you don't want to use a bullet, (1 Bullet Left Run), Kick the first guy into the glass, then grab the other and throw it into the furthest guy. I have a video on my whole 1-Bullet Left Run.