This formation represents Air America missions flown on behalf of the Cambodian military that 
used Signals Intelligence (SIGINT) to direct air strikes against enemy formations (located 
through their radio chatter).  The vision factor is supposed to represent this.
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While the Air American DHC-3 Otter AOP will appear in the normal spotter aircraft formation
it should only be purchased in the formation specifically created for it.  The Air America
DHC-3 should also not be purchased in the regular spotter formation.