i get the error when i try to load my save file:
"Error while running on_load: Hardcore_Survival_Expansion/control.lua:
7: attempt to index global 'game' (a nil value)"

mods that i run are:
Arumba_Accelerated_Start 0.14.7
ArumbasAngelBobs 0.1.11
Hardcore_Survival 0.9.5
Hardcore_Survival_Expansion 0.9.0
base 0.14.21

Hardcore Survival Expansion doesn't actually do anything on its own. You need bobsenemies or Natural Evolution Enemies. If a mod has Hardcore Survival support, then this expansion isn't necessary to use enemies from that mod.

That said, it still seems I got the initialization step wrong and I'll push out a fix.

ArumbasAngelBobs modpack has bobsenemies in it
does it need to be separate for your mod to recognizes it?

P.s.: Lets the bitergeddon begin

I don't know how that modpack works. The modlist needs a "bobsenemies" entry or it won't be detected by this mod. That said, this mod is a temporary bootstrap. If Bob adds his own remote.call() then this mod won't be necessary.