The way I remember Swooping hawks can deepstrike but I cant recall for sure cause I play dark eldar.
Webway portal is taken usualy in close combat based armies, its usefull cause until the portal is open, the units are hidden and cant be attacked and when they come out they can assault the same turn. So what you do is rush a carrier to the enemy line, open portal, and next turn ur units jump in the warzone and assault. VERY useful for wych cult armies. However its useful to have 2 portals in case carrier gets killed.
Webway portal is taken usualy in close combat based armies, its usefull cause until the portal is open, the units are hidden and cant be attacked and when they come out they can assault the same turn. So what you do is rush a carrier to the enemy line, open portal, and next turn ur units jump in the warzone and assault. VERY useful for wych cult armies. However its useful to have 2 portals in case carrier gets killed.