The planners at Endor displayed a lot of hubris, with the Stormtroopers in particular and their Navy/Army infantry support not properly geared up for woodland combat. Palpatine was really drinking the Kool Aid by that point. My favourite dude is the possible mercenary/bounty hunter with the binoculars.
What's the story here? The mercenary operative is called Chum Pavilion (a less showy bounty hunter than many, but gets the job done) and he's a regular go to guy for Imperial Intelligence and in this mission, on the forest continent of K'ail (located in southern hemisphere of the planet K'wailer), he's hunting down Rebel insurgents with the help of the local Imperial Army garrison.