<p>I’ll leave 2 and 3 to Bullet himself, but to save him some time, here’s number 1:</p>
<p>(From [Wikipedia](<a href=“http://en.wikipedia.org/wiki/Weapon_Systems_Officer]Wikipedia[/url]”>Weapon systems officer - Wikipedia)</a>)</p>
<p>“In the United States Air Force, the Weapon Systems Officer (“WSO”, pronounced “wizzo”) is an air navigator directly involved in all air operations and weapon systems of the aircraft (fighter or bomber). The WSO integrates with the pilot to collectively achieve and maintain crew efficiency, situational awareness and mission effectiveness. In United States Air Force (USAF) fighter aircraft such as the F-15E Strike Eagle, or the F-16D or F-16F Fighting Falcon the WSO can pilot the aircraft when required although this is typically during non-tactical portions of the mission (e.g., returning to base). When designated mission commander (MC), the WSO is also responsible for all phases of the assigned mission.”</p>
<p>There’s a lot more info in the article. Google prevails.</p>