Blast Network: Free for all play doesn't start with odd numbered players for some reason. I think there's no reason not to. The minimal players required could be also reduced to 3 for that. Also, I'd really like an option to play it in a fixed top-down view, so certain positions don't give advantages. (spamming from bottom)
Lockdown: There were probably many threads about UVs and trinkets in LD. Removing the ability to use them would make many players upset, who bought them just for LD, but players who don't have them feel like they always lose because the enemy team is using OP equipment. So my solution would be to introduce a new LD mode, where UVs and trinkets doesn't apply. The two modes could work separately and make everyone happy.
....Or we could just make it that UVs can only be maxed out on High in LD