Help with Invincible Sentinel(XB1)

strong textI’m level 26 or 27 and in trying to finish my first play through but I can’t beat the Invincible Sentinel so can anyone a higher level help?

I’ve got several characters I could help with. Bun Bun299 on XBox Live. He’s really not that hard on normal mode.

Ok I added you but I have to school but after around 3:30 Central will you be on?

Usually in between 5 & 7:30PM Eastern time in week days. Didn’t see you on today, but hit me up when you do.