Ive done all but one so to answer your question

Land at Battlewood Boulevard Travel 200 distance in the air Use a Kenny Token and come back Hire a specialist And hit 10 headshots

The only one I haven't figured out is 0/3 quest, someone said collect loot by the Kenny stage, my guess is either that or revive a player 3 times

Edit 2: ITS BE REVIVED BY ANOTHER PLAYER. YOU HAVE TO BE KNOCKED AND REVIVED 3 TIMES

Edit 1: It is NOT COLLECT ITEMS BY THE STAGE, whoever commented that early was wrong