Adds & adjusts fireman skills for most roles.

[BasilHerb]

About the pull request

This PR aims to add BASIC fireman carry skills to the overwhelming majority of roles in CM. It adds more advanced fireman skills to select roles, such as SLs and highly trained personnell such as deathsquad commandos. It also modifies some out-of-place fireman skills and changes them to stay in line.

I have tested my changes with no issue in the T-Dome. Fireman carry does indeed work for the one's I've changed, though I cannot say for sure I didn't miss a few roles (approx 70-ish roles total). I did not experience any bugs or glitches during the process.

Explain why it's good for the game

It is absolutely WILD that people can pass basic marine training and STILL not be able to carry another marine's weight over their backs. The average CLF guerilla has Fireman Skill TWO, whereas the average USCM rifleman has none at all. It's simply quite jarring to see this.

In addition, CLF medics and engineers have no fireman skill either- There is a significant disparity between fireman carry skills, and so this PR has corrected them to be more in line (e.g. CLF soldier, medic & engineer now have fireman 1).

Other, more advanced factions such as the super-trained Bri'ish and W-Y PMCs have skilled fireman carries already (Hell, even VAIPO contractors have it). It's simply a logical step to give the USCM basic fireman carrying skills.

There will of course, be concerns of balance- Will adding fireman carry to your average marine affect gameplay balance significantly?

In my opinion, it's an obvious 'no'. Fireman carrying is a NICHE skill. At the basic level, it is more efficient AND safe to simply drag a downed marine 6 tiles to a medic than to spend 3 seconds standing still (easy target) to carry them first.

Fireman carrying is a skill intended for long-hauls. The vast majority of casualties need only be dragged less than one screen away to a medic. Circumstances where you fireman carry someone all the way to FOB are much rarer.

In addition, fireman carrying and dragging are both completely and utterly outshined by roller beds- A tool which any marine can use and carry, a tool which can be pre-primed such that you can INSTANTLY put a marine on a bed and run off at Mach 7 before a xeno can say 'Mommy'. Roller beds are already commonly used to great effect, and as such fireman carrying will remain a niche tool that will not significantly impact the round.

I hope this PR can be testmerged to get a feel for whether it will be suitable for the game. I suspect the number of roles who get the skill may be too much, but at the very least I'm hoping for enlisted frontline USCM & UPP personnel to gain the skill.

Testing Photographs and Procedure

Changelog

/:cl:
add: Fireman carry to any roles that didn't already have them, except for colony civilians.
balance: Nerfed CLF Guerilla fireman carry from Skilled to Trained.
/:cl:

[Skatuk]

Leave CLF fireman skill as it is since it fits their background quite nicely. CLF lacks in budget but makes up with skills

[neeshacark]

as much as i would love this i feel like its going to get shot down over balance concerns (though i agree with you that it wont be as big of a deal as certain people make it out to be)

[Drulikar]

Changelog is also malformed, thats why you have the Missing Changelog tag. You need /:cl: