i dont think tiberium should move to its own planet, but i would like to see if there is a way to make a tiberium fauna faction.  would function similar to the Biters but maybe do tib damage in a radius to the player.  certain tib fauna could leave behind tiberium on death, like a visceroid or fiend (dead biters could turn into these right?)  could even make tiberium biters a thing.  dead tib biters leave a small tib patch behind and are tankier than normal, but slower because of the crystals growing into its muscles.