Squatters won't run around with laser rifles just because the PCs do so. Ares Firewatch though might, even if characters didn't even dream of them.
That may piss off most of the gangers out there, but it's not usual for them to compete directly.
Transformer Enemys are a great way to stomp fun. Mostly because the world itself goes offbalance.
That's why SR4 has 'fixed' grunt levels.
Congratulations, you got yourself an arms race that makes no sense at all and leaves the game world in shambles.
PCs simply don't have enough impact to influence such decisions on such a scale - sure, they can go after more powerful targets no, but that's their decision.
That may piss off most of the gangers out there, but it's not usual for them to compete directly.
Transformer Enemys are a great way to stomp fun. Mostly because the world itself goes offbalance.
That's why SR4 has 'fixed' grunt levels.
Congratulations, you got yourself an arms race that makes no sense at all and leaves the game world in shambles.
PCs simply don't have enough impact to influence such decisions on such a scale - sure, they can go after more powerful targets no, but that's their decision.
Wow, I think you're completely missing the point. That, or you have a decidedly not fun group to play with.
First off, there's no way for the world to go off balance, since *I* set the balance. I choose the enemies, I pick their stats and gear, and I choose how smart or dumb they act.
I like SR4 a lot, but that don't mean that I let the rules dictate the game to me. The rules are simply there to give me a framework to tell a story within and to provide the PC's and myself with a way to randomize the results of their actions. Nothing more. And that framework is incredibly flexible. I haven't managed to break it yet.
There's a certain amount of logic... Usually, Squattors won't have Panther Assault Cannons, and Ares Firewatch Teams won't usually show up without armor and only carrying Tiffani Defenders.
And I'm not saying the threat is automatic. JUST cause one tool shows up with a SNiper Rifle doesn't mean that automatically every enemy has one. Just that it can come up, when appropriate. I have a Houngan player who has a lost magic point that can attest to that. But I'll also point out that he not only had fun in that game session, he got to smack the munchkin who insisted on having a Sniper Rifle in the head and say "I TOLD you so".

The fact is, maybe I'm just lucky, and I have players who trust me to tell a good story and run a good game. And I'm lucky that most of my players are willing to put up with my little quirks (All of which *I* learned from my original Shadowrun GM, who was one of the best GMs I've ever played under) and can roll with me so that, together, we tell a good story, have fun, and have a great game.
My Mantras for Running a game:
1) In My World, Jet's Fly Backwards.
Aka, I'll bend the laws of physics if I have to, roll with it.
2) Put On A Good Show And Fate Will Smile At You.
I'm not here to kill the players. I want them to have fun. So if they try something incredibly daring and stupid, but are roleplaying their asses off and having a good time, who am I to stop them. They may not succeed, but I'm unlikely to severly punish them for trying.
3) A GMs Dice Are For Sound Effect Only
This goes along with number 2. I'm not about to kill my PCs over a bad roll on one of our parts. Dice are there to enchance the game, not run it. So when needed, I'll gladly flub a dice roll every now and then. I'l also, on rare occasions, flub a players roll as well. I've said "I didn't see that, roll again" on a few occasions.
4) Anything You Can Have, I Can Have Too.
The Mantra we've been discussing.
5) If I Kill Them, My Fun Is Over.
The game is about the PCs, and a story that involves those PCs. It's poor storytelling to kill the main protagonist(s) partway through the story. Besides, why kill them, when there are so very many more evil things you can do. My favorite was and is giving that PC a "real life". Friends, Family, Love. Ties that bind, and Bind so hard they Chafe. But killing? Bah. Too easy. Though that's not to say I won't kill a PC, but it takes a lot of effort on their part to actually get killed, usually involving some seriously gross stupidity. Or wanting to change out characters. Then the death becomes part of the plot.
Like I said, I do this with my player's full understanding, and in most cases, blessing. They trust me not to be a complete dick, and I trust them to help me build a good game. In the end, we both win. That was how I truly learned to GM, and how I've passed it on to others since.
And if that means Cybered Bandersnatches that only take a Light Wound from a Panther Assault Cannon, even after dumping in my entire Combat Pool and blowing Karma, well... So be it. I have a great story, fond memories, and lost my first arm on that adventure

Bull
PS I should also note, this is just my own preferred gaming style, and I've been lucky that most of my players like this style of gaming too. But as with everything else, there's a lot of different ways to game. And I've seen and played with groups that my style wouldn't mesh with. And I wouldn't force that on them. If everybody isn't having fun, you're doing it wrong, no matter the style you're running.