Just double check polarity is correct. Wiring it backwards won't hurt anything, but you can check with any digital camera / phone. It'll show up as purple when you fire it!
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Tiger I - Panzer II - Panzer III - Panzer IV - Chi Nu Kai - Panther G - KV-1b 756(r)
M4A3(76) Sherman - T-34/85 - M3 Grant - SECRET PROJECT