Since people have a hard time just telling people where to get the items instead of redirecting them to other threads or their YouTube channel, I'll help them out.
The going is located in Zheng's Kung Fu Academy. It is located across the street from Cameron's Cameras, beside B. Reddy Insurance Office.
The three parts of the costume are located within the tree farm area north of Golden Apple Vineyards and the fireworks stand (just before the dam entrance).
SHEILD: is located behind the garage on the North-West side. Jump on the truck to get it.
SPEAR: is located on the brown barn just South of the area (between the farm's arcade machine and the fireworks arcade machine). Jump on from the North side
BOMB: is located on top of the North most shed with 2 green water towers. Jump up from the North side.
First mission - photograph 4 flowers within the time limit. The flowers are located within the compound you found the 3 parts of the costume.
First flower: on the wooden post for the 2nd row of trees.
Second flower: located on the fence behind the shelter/canopy.
Third flower: found inside the double barn on the south wall.
Fourth flower: found in the shed where you found the bomb costume piece. (North most structure with 2 green water towers)