Assassinate mission misc fixes

[Tiny-DM]

What type of PR is this.

1. Bug
2. Change
3. Enhancement

What have you changed and why?

Stringtable: Changed SpecOps to Special Forces. Personal preference, I've heard this and "SF" a lot more than SpecOps, and it's a bit less confusing
Officer mission should render time and faction correctly, and removed a few useless lines
Traitor mission, removed a few useless lines and the old pvp mission
SpecOps: The faction should be displayed correctly, SEE BELOW

Please specify which Issue this PR Resolves.

closes https://discord.com/channels/449481990513754112/647694189236322305/1139340437132419212

Please verify the following and ensure all checks are completed.

1. Have you loaded the mission in LAN host?
2. Have you loaded the mission on a dedicated server?

Is further testing or are further changes required?

1. No
2. Yes (Please provide further detail below.)

How can the changes be tested?

Steps:
Officer: Move to the middle of the peninsula south of the southwest airbase, and call an assassinate mission, or move HQ to the middle of the ocean.

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Notes:

[Tiny-DM]

all issues should be fixed. ready for review

[jaj22]

You managed to test the specops mission eventually, right?

[Tiny-DM]

@jaj22 Yes. I got the file running properly with the includes, I really should have asked for clarification earlier. Sorry about that.

[Tiny-DM]

Change resolved. In the future it might be cool to grab the name for the vehicle it spawns and trim it down, but that's a minor fix for the future.