Well if i do the singleplayer, and i do the Robbing uncle sam mission, i always bring Ryder to the docks, BUT THEN i drive all the way back to groove street, to recruit homies, and bring them too to the docks, when we escape them (CJ and Ryder) a homie is sitting next to me, and is shooting the soldiers, that is for me, so freaking awesome!
But it takes you a lot more time lol
I also have the homie mod installed, then the homies from the mission Los Sepulcros will appear, also a thing that i really like :p
Pic:

(Btw how do i get this pic smaller

)