Change stimulants TC cost to 6

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Getting haloperidol into people is easy, you just shoot them. They probably won't even try to dodge much, seeing as they are basically immune to anything. The only problem would be a csaber reflecting, but that's a csaber balancing issue.

Making stims do brain damage seems very silly, seeing as you pay loads of tc for them. In addition, filling your reagent container up with basically arbitrary amounts of mannitol is extremely easy for anyone with access to medical vendors or a chem dispenser, which covers about 60% of the crew.