Name: This can be from normal names to serial codes for all I care.
Sex: Male or Female (Type). It may not have any sexual orientation at all.
Height: How tall the monster is. (10 feet is the limit)
Weaknesses: Your monsters weakness, you may only have a minimum of 2 weaknesses.
Weapons: What does your Monster do in order to attack? (claws, super strengh, ect.) And their secondary weapon may be something like spitting acid.
Appearance: Tell us how your monster looks, what clothing the Juggernaut may be wearing if done so. What appendages your mutant may have. etc.
Personality: Monsters are generally fairly emotionless when it comes to personality, but if your's actually has one besides grunting and drooling describe it.
Creation: How was your monster created, in a lab owned by Umbrella? The T-Virus outbreak across the world? A Las Plagas Parasite? Be creative. Pretty much anything goes.