Improved CamOps Unit Rating Handling Within Clamp

[IllianiCBT]

Current Implementation

Currently we clamp CamOps unit rating within the bounds of the FM:F (F-A*) rating system.

Problem

While my earlier fix addressed the issue of CamOps unit rating modifiers breaking a bunch of things (see #3933), there is still the issue of the CamOps Unit Rating method resulting reaching the maximum/minimum modifier faster than expected - from a balancing point of view.

Solution

Dividing the CamOps unit rating by 3 produces closer results to the equivalent FM:M rating. It's not an ideal solution, but it resolves the biggest issues.