It's broken. Like, 95% of abilities can't fight back, let alone get on top of the UFO to invade it. And even if you somehow invade the UFO, you'll still get tossed around and touched by five aliens and a real player because they're still at an advantage.
Changes that could possibly make this more fair :
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Allowing players to use skills if they successfully invade the UFO (Disabled if they get abducted by the tractor beam)
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Allowing players to mess around with the control pad, like clicking the self-destruct button or lockdown for example.
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Forcing UFO players to refuel by landing on the ground, rendering them vulnerable / allowing projectiles to damage the UFO to make it crash down.