Investigate issues with Steel Beast FP

[Raza5]

There's an issue with the overriden loot list for the HBS Steel Beast FP, where the list can't load and the lootbox won't work. Switched the loot list for RT_FP_ThreeRogueItemsG as a temporary fix which should clear up the issue. Leaving this here as a reminder for me/Ako/somebody to look into it in the future