Create Aim Offset 1D, choose Mannequin skeleton
Name as MyAimOffSet Blend space 1D
Set horizontal axis as:
Additive Settings choose Idle rifle pose
Create Idle Rifle post for 3 directions (forward, up, down)
Duplicate the Idle Rifle Hip anim sequence, rename as AO AimForward
Open it, R click on 1st frame, then remove from frame 1 to 190
R click again, remove frame 1 to 2 (be sure only keep 1st frame)
Select below at Additive setting
Duplicate the Foward anim sequence, rename as Aim Up this time
Remove frame 1 to 2 again
Go to skeleton tree, spine 02, rotate 60 degree, click +Key (top menu)
Repeat the same to create Aim Down
Open MyAimOffset Blend space 1D
Put Forward in centre, up in right, and down in left pitch timeline
Go to Anim BP (i used Strafe movement one), if not created before, make one and set as below:
My Strafe movement BP:
Go to Anim Graph, add aim offset node below, promote pitch variable:
P.S. Don’t add Slot defautslot node if having the projectile bullet BP set before
Back to event graph, add follow: