Use common skeleton, same animation, same hitboxes for all LD/HD models.

[malortie]

Some LD and HD models have different skeletons, different animations, different hitboxes.

The main objective is to make both LD/HD use a common skeleton, same animations, same hitboxes.

Reasons:

• Ease maintenance of models
• Avoid confusion for mappers and potential issues that arise from using different sequences (1)
• Ensure both LD/HD have same sequence durations (2)
• Ensure both LD/HD use the same hitboxes. (3)

(1) For example, LD and HD scientists don't use the same arm when playing give_shot sequence. The needle is not on the same hand. Depending on what the mapper intended, this can look wrong in LD/HD if other bodygroups are enabled (clipboard/headcrab stick).

(2) Having different sequence durations between LD/HD can cause discrepancy in gameplay. Both variants may end up too soon or too late depending on what the mapper intended.

(3) The HD model is just a graphical overhaul. It shouldn't affect gameplay.

[malortie]

Since it has been decided to preserve the animations and aesthetic of both LD/HD models, this likely can't be possible without altering either or both.

(1) could be done for specific sequences such as give_shot as long as players consent to use the same LD sequence. Note that this would require porting the LD animation to work on top of the HD scientist skeleton.

(2) can be considered addressed since tweaks were made to HD sequences FPS to match the LD ones as close as possible.

(3) isn't that much an issue as long as all HD hitboxes have the same the same type as their LD counterpart.