SPE Compat - Fix flamethrower magazines not showing in arsenal / 50 Cal deafness

[kerckasha]

When merged this pull request will:

• Fixes flamethrower magazines not appearing in ace arsenal
• Sets ACE_Caliber on SPE 50 cal ammo to put it more in line with vanilla ammo when it comes to causing deafness (Without it earplugs were ineffective)

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[PabstMirror]

does flamethrower mag show in vanilla arsenal?

[kerckasha]

does flamethrower mag show in vanilla arsenal?

Yeah - the reason it doesn't show in the ace arsenal is it currently is using

		type = "12 * 256";

Which is some old value that isn't used anymore - and is filtered by ace arsenal as it doesn't fall into the 'used' types