What’s the best way to deal with Deep Strike?

I'm going up against an army with some Warp Talons in it that I'm particularly nervous about. I'm a little concerned that I'll be snuck up on while I push forward. Here's my list:

Lord Solar + PCS w/ 10-man Infantry Squad (mortar, sits on my backfield objective) Enginseer

20-man DKOK 10-man DKOK 10-man DKOK (In Chimera)