if you kill 2 birds in the air at spawn before they get away, you get bullPOG and a random perk.

If you kill 20 birds during one game, you get a perk, shield and a upgraded weapon for free (you can aquire pap weapon if you crouch (rampart 17 upgraded ?)).

did you know that you get ragnarok gravity spikes inside those bags while searching them ? Pretty sure it has low chance to aquire it.

some weapons have a second weapon, press 4 to interact it. (especially if you have overkill minigun)

edit: forgot to mention about the 3 dummies on the map, 2 of them are on spawn (on your left while facing tiger tank, he hides behind a tree, another is far away on the straight road,also hides behind a tree)

last one is behind the tree on generator area has double tap machine. Reward is a random perk.