Find things to do in Firefall

As it stands you can only create 1 character, but there is no need to create more than 1 anyhow.

Each character can swap between any of the Battleframes (Firefall's version of a 'Class'), simply by unlocking it at the battleframe garage and then swapping between them by using the battleframe stations (these are located in most towns/outposts/watch towers)

You start with 3 battleframe slots, and can purchase more with redbeans (the ingame currency), but even if you dont wish to spend anything on purchasing any extra slots, you can happily delete battleframes without losing any XP or unlocks you have earned on each frame. Meaning you can delete a frame, and later load that frame again and you still have everything you had originally... you will just have to re-equip certain gear items/unlocks.

If you are trying to craft a blue crystite hybrid module, you don't need dna level 4. Even though that's what the recipe links to, you can also use varying amount of lesser materials to craft the same thing. 50 standard dna samples can be used in place of 1 level 4. The recipe is under crystite hybrid modules. You can usually find a good number of hisser pods in the rockpools, at around (922,687)