I don't know that scrabs and paramites on the same screen has ever been tested, Nep. I believe you're quoting me on the matter from when it came up in a hypothetical situation ages ago.
I don't think that putting them in the same .lvl has ever been particularly successful.
I placed both paramites and scrabs in the same screen,and nothing happened,abe got chased by the scrab,and then the paramite killed abe when he got cornered.I made a level about that in the finished lvls thread I think.
I took look into all level files with Cheat Engine (Hex Editor) i found out that f1.lvl, f2.lvl and f4.lvl contains Scrab & Paramite sprites inside level.
Also i started make new level and video of it. This little chaos haves also Sligs and Slogs to mess players thoughs while running background:
This level will be still slightly at beta stage.
EDIT: Wolfenstein posted at the sametime something interesting...
I have start though would one manual hex edit make Scrabs work at RuptureFarms. I compared all levels that have Scrab sprite file and all bytes look same on each level that contain Scrab. Should try pasting these bytes to RuptureFarms.
Feels that it only crash, but worthy to try if it still would work...
EDIT: I know there is easier methods for pasting sprites with Paul's tools.
It's really nice talking and also really nice above comments, guys, i also want to say something about it, I have been patiently waiting age groups for you old-world molders to create a display with both a crab and a parasite in it...
Btw the next editor will make that easier as in the xml you can say which files an object requires, so when you save a path it will ask for a level that contains whatever.ban and push it into the lvl you're saving.