As a Judo player, and as any player who spends time attacking/passing the guard, having your routine/set of moves is important.
The following takedown to half-guard passing is by and large my process for getting to a more dominant position than half-guard and working toward a submission:
Kouchigari to top position/half-guard:
a) to Paulista Pass
Kurt Osiander's version:
b) Cut Through pass
c) Tripod Cut Through pass/Knee slice pass
d) Half-guard Pass to mount