My list of places that Cas would visit (and the order) would be:
The 'inner zone' of the hood. This area is patrolled the most by the cops. Probably clustered round the police station (maybe). This area is mostly populated by older, wealthier members of the area, especially old timers and people who run shops. Most of the old timers probably had kids who moved out into the gang zone. Mostly appartment blocks and shops. Basically pretty poor, but still the 'rich' area of town.
Some police patrols here. Any gang/violence is cracked down on pretty quickly.
This is where the majority of the suburbs are. Houses for middle aged and younger people. Basically house and houses and houses. Maybe moving into blocks of flats as it gets towards the Safe area. Buildings range from cooky cutter prefab houses to aging larger blocks of flats. All pretty 'tagged', but livable.
Gang members patrol the area in hotted up rides. Occasional voilence, but mostly safe because the 'locals' are not very far from any point. Family/network of people running a gang equivilent of 'neibourhood watch'. Anything strange reported pretty quickly (during daylight anyway).
Im assuming the gangs would mostly have places to hang but would be mobile (with sufficient wheels to get them anywhere and in impressive style). Id assume they would get a call if anything went down in their turf (and was spotted by some eyes).
This is the lawless area between gangs and police stations.
During the day, people just skitter like 'roaches from place to place. Noone talks to anyone else and it basically just looks like a mostly abandoned rundown slum. Buildings are planked up (even the lived in ones). Cars are stolen, driven here, stripped and dumped. Noone actually stops or parks here.
The night people rule here. Prostitutes and drug pushers cluster for saftey in groups, in the areas that still have street lighting. Police dont visit here except in groups for mutual cover. Gun shots and smashed glass can be heard now and then. The odd Gang patrol moves through the area, keeping their own back yard clean.
Most gang clashes happens here, away from prying eyes. Most gangs have 'eyes' in this zone, especially closer to their own turf.
Im assuming that DMS' gang, the Snakes, have a pretty good network of 'eyes' in all the areas. Im assuming that DMS' anti-player stance has probably won him support in the 'Safe' area, and maybe lost him some in the 'DMZ'. *shrugs*
Ice's mum's place is probaly not well known. He's probably done the tough guy act to keep his cred, but because he's just a big teddy bear, (as I said in the novel :) that he still visits and brings does her shopping.
[Feel free to drop this if it's too much of a life line for Cas. Im sure that Ice's mum probably doesnt like the gang stuff and Im not sure what Ice would have said about Cas. Probably not that she was white, or maybe he did and told his mum about this drug dealing white chick (years ago, back from when D & Ice were against Cas). *shrugs* :)]
She'd probably be ok at the gang head quaters because of the mix of pro and anti Cas people there and the fact that anything happening there would get back to DMS. Meeting a random car full of people is probably more dicey. (Although I guess they wont want to kill her, given that any police investigation will get back to DMS (Cas may play on this and force the issue, knowing that they will have to back down, which wont help her position in the long run)).
I guess some of the gang, (Ice's friends and DMS converts) would probably be proCas, (and Cas would know those people, right :) and that would probably be useful for her. She'd be able to get some info on whats going on.
So, lets see. Im assuming that their reaction to Cas will determine their reaction to the gang. Even if they are for Cas, these strangers are going to be intimidated by the locals, especially if they are in numbers, thus needing bluster.
As to how far that goes, well I cant say. Im assuming that anything that need hospitialisation is probably doubful unless they are pushed (by rene or cas or campbell). Killing would be out, even if the people are in the anti cas faction (it would get back to DMS and attract police attention).
Stealing stuff might be ok. I mean "a big black guy took my wallet" is just going to get "uh-huh" from any cops you tell it to. Im sure they'd take the details and promise an 'investigation' but jack'd probably happen. I guess the cards would turn up eventually, altough if there was enough cash in the wallet, then im sure someone would just return it for 'the reward'.
I think that Carlos' taxi would be safe in most places (even in the danger zone, atleast for a short time).
I dont think the gang would be safe (away from cas) for any real length of time. Even proDMS gang members wouldnt skip a quick buck by leaning on some strangers, although if they spun a good enough line, they might be ok.
If you want to use the Crow 'Devils night' idea, then probably extra cop cars looking for trouble (maybe in the 'safe' and 'gang' zones). Im not sure that our little group would earn more than a wound down window and a "get out of here or we cant be held responsible". 'Devil's night' play would probaly only happen in the Battlezone area where the cops dont tread.
Cas' plan would be to try and contact: 1) DMS & Ice, 2) Fixer, 3a) DJS, 3b) Sarah and TF.
I figure she wants to know that DMS and Ice are safe and know that they are under threat from some outside group. I dont think Cas understand exactly who is it, so the others will probably be leaned on to explain it.
I think she's also going to want to weapon up. Im figuring that she could probably get some stolen weapons for cash somewhere in the hood (even if DMS is trying to stamp it all out :).
She wants information about whats happening and who's doing it. She's going to ask what people know and who these people are who are looking for her and offering a reward. (Maybe even the possibily of setting up a trap and getting herself caught or grabbing the people who come to do the catching).
Underneath though, I think these are the only people who actually matter to her:
Im not sure that we'd get to Fixers and DJS' place, but she might ring them from Ice's mum's place or the Gang HQ.
I'd suggest a visit to a night club, but you __obviously__ dont have the music for it on the jukebox :) :).
Err, is that about all?