Overhaul and Flesh Out Barry Isherwood's Rescue Mission, part 2

[MNG-cataclysm]

Summary

Content "Overhaul and flesh out Barry Isherwood's rescue mission, part 2."

Purpose of change

This is a co-development PR for #73264, intended to cover parts of the project that Erk and I couldn't fit in the first one.

Describe the solution

This PR does a few different things for the rescue mission for Barry:

1. You can now buy riot gear from the Hub and the Exodii for $400 if you have good standing with these factions, allowing you to outfit the Isherwoods without a risky run to town. You can even buy this on credit, with a 20-day period to pay this fee back. Failing to do so lowers your reputation with both of these factions.

2. If you've been to a mi-go location before, you can talk with Luke Isherwood about building a truck bomb to breach the side tower with. This is a 2-mission chain that involves killing bandits for their truck, then going to a mine to get a dynamite shipment for Luke to make a time bomb with. This kills a lot of mi-go's when detonated and gets rid of the gas on floor 1 of the tower.

Describe alternatives you've considered

Not allowing the player to buy equipment from two factions, and not letting the player get a truck bomb for a risky extraction. I think that both of these make the mission less cool.

Testing

Tested multiple times, everything works well.

Additional context

A design document can be found here

Big thanks to @I-am-Erk for all of his help with this project. He did the dialogue for part 1, and thanks to @Maleclypse for finishing the dialogue for this PR, you've both done a whole lot and I'm happy to have worked with you.

[MNG-cataclysm]

All that's left for this PR is to add some fail states to the rescue mission, but I don't think that can be reliably done until part 1 is merged.

[TealcOneill]

Is this finished? It looks good 👍

[MNG-cataclysm]

Is this finished? It looks good 👍

No, I'm still waiting for @I-am-Erk to finish the dialogue.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. Please do not bump or comment on this issue unless you are actively working on it. Stale issues, and stale issues that are closed are still considered.

[github-actions]

Spell checker encountered unrecognized words in the in-game text added in this pull request. See below for details.

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• Anychance I can buy some riot armor? I need five complete sets.
• If'n you survive, We can give you a fortnight and six odd days to pay us'n back.
• Mayhaps this gear will do you better than it did the scuffers wot trained with it. [$400]
• Right and done, don't let whatever you are going after turn you into a pork loin well done. I's expectin, you back.
• [i'm here to pay my riot gear off.]

This alert is automatically generated. You can simply disregard if this is inaccurate, or (optionally) you can also add the new words to tools/spell_checker/dictionary.txt so they will not trigger an alert next time.

Hints for adding a new word to the dictionary

• If the word is normally in all lowercase, such as the noun word or the verb does, add it in its lower-case form; if the word is a proper noun, such as the surname George, add it in its initial-caps form; if the word is an acronym or has special letter case, such as the acronym CDDA or the unit mW, add it by preserving the case of all the letters. A word in the dictionary will also match its initial-caps form (if the word is in all lowercase) and all-uppercase form, so a word should be added to the dictionary in its normal letter case even if used in a different letter case in a sentence.
• For a word to be added to the dictionary, it should either be a real, properly-spelled modern American English word, a foreign loan word (including romanized foreign names), or a foreign or made-up word that is used consistently and commonly enough in the game. Intentional misspelling (including eye dialect) of a word should not be added unless it has become a common terminology in the game, because while someone may have a legitimate use for it, another person may spell it that way accidentally.