[Possible Spoiler?] Why have we not seen ARGUS involved?

I've been wondering about the lack of ARGUS and Amanda Waller especially considering the Alpha-Omega bio weapon is in the flash backs which heavily involved Waller. Surely the greatest military force could assist in some way in Nanda Parbat or even be put on alert for even Starling City gets attacked. Surely ARGUS, Suicide Squad and Amanda Waller could play some support in this storyline.

Have DCCU banned Arrow from using ARGUS due to Suicide Squad movie which isn't out till after Batman vs Superman next year. I really like Amanda Waller and the actress who portrays her. I feel there's so much more to explore with her and ARGUS.