bottom left on that second part, apologies. But that should make the other parts of the map have more incentive to be navigated.

I gave this a whirl and I have mixed feelings about it. The main difficulty is just getting out of the alley you spawn in, most enemies bumrush you once the map starts off due to them all having a 50% chance to investigate a rather sizable radius. Due to the way the map is structured, you can just ignore 1/2 of the map. By placing an explosive charge on the right wall and just hugging the map's edge until you get to the VIP's area.

I'd unironically shift the starting point from the current location and have them start on the bottom right. Would probably make the map flow a lot better. Also tweaking the enemy's investigation radius / chance so they don't all start bumrushing you.