ive never been able to find the yellow medkit where is it
Viewing post in Aftershift: the Post-TF game comments
It's in the room between the pooltoy room with 2 terminals, and the locked vault with level 2 doors with yellow barrels. Just go left after passing through level 1 door next to the sparks, after grabbing the keycard and stick to the bottom until you see it.
And as you can see, the game always finds a way to reward exploration!