Spawn camping is the only kind of camping I don't think is fair, as it is manipulation of the spawn system in a particular game to get you free kills.
Otherwise, camping is fine. The way I see it, you can camp, Run 'n' gun, or do something in between (sneak around, I guess you could call it). A good play strategy mixes all 3. If you run and gun all the time, you're an idiot. You'll be running straight into fire many times, and will probably die a lot.
Similarly, camping puts you in one spot, and while that might get you a kill or two, you're a sitting duck once people realize "Hey, there's a guy standing in that dark corner".
The stealth gameplay is a good mix, but you can't rely on it either. Essentially, it's hiding. Avoiding the enemy. That might save your life once or twice, but you're not going to get any kills with it.
The trick is knowing when to use each strategy. If the next room is filled with enemies and their big guns, you might want to hang around just outside the entrance to that room and wait for them to exit. If it's just one guy, running in will be far more productive. If all the guys file out of the room from different directions, your best bet might be to find a convenient shadow to hide in until you can get a kill without being mauled by the rest of the opposing team.
Otherwise, camping is fine. The way I see it, you can camp, Run 'n' gun, or do something in between (sneak around, I guess you could call it). A good play strategy mixes all 3. If you run and gun all the time, you're an idiot. You'll be running straight into fire many times, and will probably die a lot.
Similarly, camping puts you in one spot, and while that might get you a kill or two, you're a sitting duck once people realize "Hey, there's a guy standing in that dark corner".
The stealth gameplay is a good mix, but you can't rely on it either. Essentially, it's hiding. Avoiding the enemy. That might save your life once or twice, but you're not going to get any kills with it.
The trick is knowing when to use each strategy. If the next room is filled with enemies and their big guns, you might want to hang around just outside the entrance to that room and wait for them to exit. If it's just one guy, running in will be far more productive. If all the guys file out of the room from different directions, your best bet might be to find a convenient shadow to hide in until you can get a kill without being mauled by the rest of the opposing team.