I think what I would personally love to see once Kellin's model gets proper animations, is his playermodel changing according to what equipment you have on. So if you had say, the tinfoil hat on, Kel's beanie would be replaced with said tinfoil hat. If that would be complicated to apply considering the numerous equipment combinations out there, then I think at least a playermodel change for wearing the hazmat suit or the fire protection suit would be a wonderful immersive change.