Another report on my checking of infinite spawns in singleplayer, this time on Salamun Bridge.
Bridge East: Infinite enemies rushing you, finite enemies on the machinegun nests. Even if you stay all the way back where you start, you only have to kill three or four guys on each emplaced gun before they stop refilling. However, the waves of enemies on the bridge keep coming until you advance. Your APC follows you in three bursts; on the third you are notified about the bridge raising and hear the alarm. At this point, the enemies quit spawning and you only have to kill what's still in front of you. Since I'd already cleared out the gun nests, Rico and Garza were manning them when I came up, and I actually had to melee them off the emplacements to get them to acknowledge the next phase should start.
I did this on both Trooper and Veteran. The only difference I could see is that on Veteran the HG shoot the gunner off the top of your APC a lot faster; on Trooper he tears them up for a while. A trivial bit: you can actually see the AA gunner you'll have to face next over the right side of the bridge, but even with an M82 I couldn't kill him from distance. Once you advance, he leaves and the gun goes quiet. I thought about bringing the sniper rifle all the way from Visari Square to see if I could pop him before the under-bridge sequence (which would require using only a pistol for all of the Salamun District level
), but your weapon is defaulted in that level so you can't.
AA Gun: Infinite enemies rushing you. Earlier in this thread
Tempy said they weren't, but that wasn't my experience. Perhaps he meant the faucet turns off only if you advance past a trigger? I stayed back around the corner out of sight of the AA gun and killed tons of redeyes without them stopping. (Or perhaps he was just mistaken,
like he was about the ISA RL being in the campaign). As soon as you kill the AA gunner, the enemies quit spawning and you only have to kill what's still in front of you. Trooper and Veteran don't appear notably different.
Bridge West: Finite enemies rushing you, infinite enemies on the emplaced guns. Basically the opposite of Bridge East. You can clear out everyone on your level, and the RPG guys from the right tower. But I killed 50 people moving to one of the gun nests (left tower, and middle of the bridge gate), and they never stopped getting replacements. You have to advance to make them finite, at which point the Marine buggies show up back at the east end of the level. A trivial bit: it seems that anywhere there's infinite enemies, there's also infinite allies; in all these sections more Marines keep spawning as some die, though not enough to make the fight even without your help.
Thought somebody might be interested in this stuff.