Wow never thought I'd see someone think Deadshot is low and BB is top. I haven't played I2 for months that many changes huh? I remember the days when BB was just bad.
In the current version of the game, I think Blue Beetle is one of the most versatile characters in the game. He can zone and rush down. He has great aerial mobility. The range on normal attacks is a little short, but he has trait and shield slam, which does have good range and makes all strings safe on block while not in trait. He is not a character who is easy to use by Injustice 2's standards. Nonetheless, he is well-represented in tournaments by Deoxys and Rewind.
I originally The Flash in top tier and Blue Beetle in high tier, but Slips made the suggestion to flip them.
Scarecrow, Ivy, Cyborg and Supergirl in the same tier as Raiden?
REO kept pushing for mid tier. I personally believe he is low tier, but he is the best character in that category.