I know that Lockdown/Blast Network needs a lot of changes, but let's fix some simple things first:
Remove the spark/energy revives
You are making this game even more pay to win than it already is(uv's). Remove it and maybe reduce the respawn time by 2 seconds or something like that.
Blast Network powerup limit:
In blast network, you can get powerups that increase bomb power,range and movement speed. There is a limit, but the problem is that you are almost invincible if you get all powerups and noone can do something against it.
Blast Network collision update:
You probably know this:
you see a bomb blowing up, and get out of the way. Yet you still get hit by that bomb, even if you went out of the way. This probably happens because the hitboxes are messed up or don't update correctly.(I know that this might be a problem of lag, but i'm not having lag on BN or on the clockwork levels.)
Surprisingly enough, I actually agree with you for once Blitz: energy revs should be removed from LD. I always felt that it made people who spent hundreds upon thousands of energy on a single game to always win, since they would always be in the match longer than anyone else. So It pretty much meant any any players or guilds (Jempire) that was rich would always win. There was a time when the spark system was first added that energy revs were taken away completely and every revved in somewhere between 2-5 seconds; I actually liked LD for the short time that was in effect.
As for your BN changes, I don't play it enough to know any decent data on how to balance it. However, the broken collision hit boxes you are referring too is probably due to latency, as the same thing happens when you are fighting a fast attacking monsters in the arcade. Meaning that it is a problem with the servers, and not BN