Like I said, I think the issue is not that Tripwire is somehow rewarding or failing to punish people for doing this, that, or the other thing.
The maps were originally designed for 32 players. Going up to 50 players will naturally change the flow of those maps if they were specifically scaled for 32 players max. Many defensive positions will be very difficult to overwhelm. Other defensive posistions will be impossible to maintain because you can't cover all the approaches and get overwhelmed too easily.
But all this stuff about how NOW the game rewards arcade behavior and such? Rubbish. The game itself hasn't changed. What's changed is how certain maps play with more people, and that's to be expected. Some maps will play well. Other maps will not. No great shock there, and if it is, well, wake up, man.
But it's not as if Tripwire is suddenly out to get you.
I swear, I see this kind of crap after every patch. People whining about how the game has suddenly gone from some ultrarealistic experience to the opposite extreme of an arcade shooter.
News flash: the game hasn't become more or less arcadey because of sniper icons, the ammo pickup system, increased player counts, or anything else along those lines. It just didn't happen. What may have changed is your PERCEPTION of the game, but the game pretty much plays as it always did. Now, if all of a sudden we had crosshairs, or if weapon sway was removed, or people could suddenly take full clips of automatic weapon fire and survive, or you could leap to the top of doorways and throw grenades the length of a football field, yeah. Then I'd say it had become arcadey. But the rest of these complaints are people pissed that their perceptions have changed, while the game itself remains largely unchanged since release.