Upgrade circuits are not permanently attached and can be easily removed.The Probe Gun is something you create for a mission and you get nothing for dismantling it afterwards. The Planet Cracker is the DS2 bonus weapon and you can't put the parts back together. Special weapons that you might NOT want to dismantle are the Planet Cracker Plasma Cutter and the Probe Gun.Just experiment with creating weapons! Under the Solo Campaign menu there even is a Weapon Crafting Arena to test combinations with unlimited ammo. It costs nothing to dismantle a weapon and ammo is universal.That's it, there are no other differences. Elite already has all circuit slots unlocked and costs 80 Tungsten to craft. Standard has 4 additional circuit slots that need to be unlocked for 20 Tungsten each. The difference between Standard quality Frames and Elite quality has to do with upgrade circuits.Both of them have different tool combinations, but the Heavy Frame has a lot more options. When you assemble a weapon you typically choose a Compact Frame or a Heavy Frame.It's easiest to just keep playing until you see a progress save notification before quitting. There are 'progress saves' and 'inventory saves'. The game only has auto-saving, unlike the previous games.If you are on PC there are online guides on how you can fool the game that you have those files. You get a bonus weapon for a Dead Space 2 save and a bonus suit for a Mass Effect 3 save.All the guns are available to you immediately and it's not immediately clear what is and is not a DLC weapon or armor suit you're not supposed to be able to get yet. So the first time you move to a shop ~25 mins into the game you are greeted to this ridiculous array of weapons and suits, including weapons and advanced suits you're not supposed to be able to acquire until mid or late game. There's no in-game way to disable this, and Steam reports there are no DLC packs enabled, it's just part of the core game now. The real kicker is that they released some kind of update after launch whereby they gave you all these DLC items. The mouse feels terrible, the acceleration and such is pretty bad, which requires a 3rd party fix to correct unless you just want to use the gamepad.

Using 3rd party programs to cap the framerate without v-sync works, but the game stutters like a motherfucker with frametime spikes up to 100ms in some cases.

It still looks ok, but after reinstalling it today and firing it up I've discovered the following shitshow: My memory of playing DS2 on PC at launch is that it seemed to look and run well.

Dead space 2 pc everything unlocked