I'm afraid I can only get to a state where the stretched twig of peace is at melting point. It needs something like explosive-filled cats to go further. Too ASB?
...Wanda you're a genius, explosive-filled cats!
Anyways, the Peoples Republic of China wants to reignite the Opium Wars, fight it with the British since they can't wait till 1997 to get the place back. So The Peoples Intelligence Agency (smartest idiots in China) or whatever it is called starts to produce Opium to traffic through Hong Kong to the rest of the world; It's targeting Australia (since India is too poor to effectively target with high-quality drugs) and the Australian police start noticing all this Heroin coming from China.
There's no way the Aussies can put up with this, so they try to talk with the Hong Kong Police. The Hong Kong Police aren't exactly corrupt, but they're not saints. Some of them have been tapped by the Peoples Republic of Dope Dealers and some of them honestly want to stop the flow of opium to Australia (since it looks bad that the Australians are busting 100 pounds of Heroin in containers from Hong Kong every two days). So to help them out the Australians send some crack police squads, swat teams, anti-cartel units, investigators, even a few drug-sniffing dingos. The whole shebang is going to Hong Kong almost, all military-level weaponry to take out the Triads or the Yakuza, or whomever (they don't know it's that Giant Peoples Republic of Secrets yet and think it's a gang).
Anyways, after a few days of getting leads, building up the forces and learning how to co-operate with their Hong Kong counterparts the Australians think they could take down the gangs. The Hong Kong police don't think so, they've dealt with these kinds of scum before. In different ways, of course, but they're going to take their time. The Honest Hong Kong Cops want to train some more with the Australians (cue friendship montage to cheesy 90s music), and the corrupt ones want more time to sell the drugs and tell the Peoples Republic of Intelligent Drug Dealers the plan for taking down the "gangs". With this information the Peoples Republic of Amazingly Bad Decisions decides it's time to arm it's drug ring; sending cheaply made guns to guard the cheaply grown heroin is a bad idea, especially when facing the police forces of the rich nations.
It's like bringing a pistol to the artillery range, if you get my windspeed...
Anyways, after a few weeks the Hong Kong Police agree with the Australians and finalize the plans to bring down most of the gangs. They haven't told all the police, they've uncovered some of the corrupt ones. But not the corrupt ones in the pocket of the Chinese Communists. Just the petty ones connected with Real Gangs, they get caught up in the gunfire that goes down in some of the busts.
Like the first one, at the back of this one bar on the road with the name that no one can seem to agree on, it goes down like this: 20 cops go in, take down 12 drug dealers armed with guns, but they're local dealers. There are 16 more dealers who are captured, a few whom are Peoples Republic citizens trying to gain more drugs to sell to target Australia. They keep their mouth shut, hoping they can lie their way towards an expensive lawyer. However one has had too much to drink that night, and was in the john trying to go when the police busted into the building. He whips out his cellphone (big ugly thing, prototype of a rip off made by the Peoples Republic of Manufactured Plastic Things) and tells his Peoples Republic of China Intelligence Agency buddies that the police are raiding now, and they have to bug out. They start, and tell the other guys that they'll be out in no time.
So know the Peoples Republic knows about the colluding between Hong Kong and Australia to take out their attack on Australia. They know their weapons won't be able to give their traffickers an advantage against the cops, so they send more as well as explosives in order to keep their operation safe. The Australians intercept the weapons and ammo and now they're guessing they've uncovered something big; however the explosives get through. The corrupt Hong Kong cops are talking with the imprisoned PRC-itizens and they realize they'll not have fancy lawyers, so to get out quickly they devise an escape plan. The PRC explosives will be used to blow up the wall of the prison, the prisoners escape and they continue to traffic drugs. Brilliant plan, the Peoples Republic thinks, and of course, their intelligence agency is all over this. It sends even more explosives!
These get caught at the border and the people transporting it are kinda easy to fool into revealing where they came from. So the cops know that the communists are sending these bombs to break out the criminals, but they don't know that there are already explosives in Hong Kong. The PRC gets a word of these events, their second explosives delivery has been intercepted. So they decide that the explosives and weapons already in Hong Kong will have to do; the jailbreak proceeds, albeit ridiculously as the Guards are better marksmen than the PRC-trained gang members and intelligence agents. The Hong Kong prison guards are like snipers with telescopes on their gun and even more telescopes in their eyes and their hands so steady from not smoking drugs. But once the explosives go boom, the wall falls and the gang members rush into the prison to get out of the line of fire of the Hong Kong Sniper-Guards only to run into the Guards with vicious dogs inside the busted prison. It's really not their day. They have to shoot the guards, dogs and free their allies. In fact they lost more people raiding the Prison than they got out of the damned place. They needed to arm their rescued guys with weapons from the fallen and run out.
The Australians are pissed, they were supposed to go home, and now they have to stay. For a bit longer anyways, now the whole of Hong Kong is not trusting the police; the corrupt cops feel this and go AWOL, leaving less than half the police force of Hong Kong as the honest guys they are to try and help keep the peace. The corrupt Chinese cops (that weren't imprisoned) collaborating with the Chinese Communists (that weren't in prison) co-operate with the Criminals (the Chinese who were imprison/in a gang) and begin to gun for the Aussies as well as the rest of the Honest cops.
The first few battles rage on, and the streets are filled with the blood of innocents who got caught up in it. However there are more criminal-communist-corrupt Chinese forces in the city than Australians and their Allies. Soon enough they're all holed up in one large police building and trying to fend off a blatant attack by the Crim-Com-Cor.
It's this blatant display of Criminals, Communists, Corrupt Cops and Chinese Culture that forces the City of Hong Kong to act. Rising up against the odds, the people with the least training and the shittiest weaponry surround the police station and lay siege to the CCC headquarters. So now it's the City vs CCC vs Cops and Australians. And it's effing crazy, there are snipers on every fire escape, RPGs blowing up billboards and
cats with grenades strapped to their back. However soon enough the City has run out of its most dedicated people; the armed civillians are dead, dying or dying to leave the hell hole. The Crim-Com-Cor has basically fallen apart after the cops and criminals took off to hide out this giant riot (that the honest cops couldn't stop since they were holed up in the city) and the Communists are trying to get their amazing intelligence agency to save their asses.
This goes on all night, and when dawn breaks the Australians and Honest Cops think they've won the day, but it was really the city that saved itself in its Civil War. The part about the Communists never gets to the public, they're too frightened to think about it too clearly. The Australians leave, Hong Kong has less of a drug problem as the Peoples Republic of Crap-We-Screwed-Up stops using it to traffic and by the time Hong Kong becomes a part of China it has suffered through a weird political thing that made it better than OTL.