Ballistics/Realistic Weights - Improve LMG_Mk200_F

[LinkIsGrim]

When merged this pull request will:

• Change barrel length to 15" as per KAC's website.
• Change weight to 11.4lbs as per KAC's website.

Reference: https://www.knightarmco.com/12627/shop/military/machine-gun/lamg

IMPORTANT

• If the contribution affects the documentation, please include your changes in this pull request so the documentation will appear on the website.
• Development Guidelines are read, understood and applied.
• Title of this PR uses our standard template Component - Add|Fix|Improve|Change|Make|Remove {changes}.

[BaerMitUmlaut]

The in game barrel length seems to match other weapons with a similar length barrel (HK 416, CTAR), so that's definitely more accurate.

I did not find any good references that it was ever called the Stoner 99, I believe it should be the Stoner 96. I have not found out where the 99 designation comes from, I found mentions of it in some blog comments and some airsoft related forum threads, but nothing solid. The origin within ACE seems to be KoffeinFlummi/AGM#826 from @bux.

I am not a fan of just changing all translations, especially not the Japanese one. The Chinese one is untouched for some reason? I would suggest just changing the number, since that will still be more accurate but not as confusing to players and cause less translation issues.

[bux]

I actually can't remember why we went for the 99 designation. It might have something to do with the 2035 setting. But iirc there was a reason why we didn't use 96.

[LinkIsGrim]

Alright. I'll drop the naming changes for now, then.