Pretty impressive.
Couple things.
First, the "whole area outside the city centers is like a battlefield" is not true. That's the Combat Zone and is a certain, nasty part of the City. Outside the Corp Center is still downtown and it's not a battlefield. There are gunfights, but it's not the Zone. You can walk around there in light armour or even no armour and be fine.
If you consider Night City to all be like the Combat Zone, you have a very inaccurate perspective on Night City. This gives you a better idea :
http://datafortress2020.com/nightcit...algamated.html
Second, C-SWAT isn't incorruptible. It's also called Max-Tac in NCPD, C-SWAT being the generic term for the anti-cyberpsycho police units. Anyway, they are corruptible, albeit unless you are a 'psycho, bribing them is pretty pointless. They don't make a lot of arrests or give a shit if you are dealing drugs. H
Harbour Patrol is the most incorruptible unit in NC, at least in the 2020 era. Famously hard-assed and independent.
NCPD cops are not underequipped. The rest is accurate.
This video regards Downtown as the Corp Zone. Nope. Corp Cops stick to the Corporate Center. NCPD has the rest. "The crime in these zones is kept in check by brutal security sweeps.." Nope, not at all. These areas are claimed by different booster gangs and kept civil by NCPD and well-armed citizens. And the boosters don't want to shoot up their own blocks. The neighbours, though...
Some of these differences aren't a big deal. Some, like how dangerous NC is overall and where the Corp Cops are and suppress, is a pretty major change.
Places like Westbrook, North Oak, South NIght City, etc are your "standard city" areas: residences, malls, Corporate secured Beavervilles, 7-11s, etc.
Just outside Downtown is the Combat Zone, which is a gang-controlled warzone.
Downtown is the busiest part of Night City and the source of most of the stories, adventures, legends, etc. It's dealt with heavily.
In the middle of Downtown is the Corporate Center. Or was, until it was nuked.