I came across these and cannot identify the set - greys, tan, orange, darker green

Question

I came across these and cannot identify the set. Can anyone help me with identifying the set?

Answer 1

• The top left assembly is from 75974: Bastion

• the top right assembly is from one of these AT-ST 's

• the bottom left assembly is from 75035: Kashyyyk Troopers

• The bottom right assembly is from 70228: Vultrix's Sky Scavenger