Hey Viper! I'm a fan of Sander van Doorn's Identity show too :)
On this YouTube video the drop is at around 1:28:
https://youtu.be/cOaHjvuQiyk?t=1m26s
I don't know exactly how to make that lead. However, it's not all that different from other electro-house track leads. I'm more familiar with Sylenth than Serum or Massive, but one thing that took my productions to the next level was really learning how to make my own lead from scratch in Sylenth. In the beginning it was super easy for me to just cycle through endless presets and randomly tweak knobs. But actually learning sound design, especially for things like leads, risers, and random effects was huge! Try following along some sound design tutorials on YouTube. Here's a good one I found "How To Make the Perfect Saw Lead in Massive":
https://www.youtube.com/watch?v=tGK4WfP8pUQ
I know in a previous post you mentioned not being able to use YouTube, so maybe you could find a written tutorial? I saw on your Equipboard that you're using FL Studio 10. Here's a written tutorial on making an electro lead/bass type sound using FL: http://howtomakeelectronicmusic.com/how-to-create-electro-lead-bass
I think once you really start figuring out what's what in Massive, you can replicate any lead you hear fairly easily (or at least come close to it). It's hard work learning sound design, but once you're there it's like a switch goes off and you can design just about ANYTHING!
Specific to the lead in the track Cobra, it sounds super widened to me, and has loads of reverb (seems like the original lead was doubled and the duplicate is washed in reverb). The way the melody is played gives this one a lot of character, too. Several staccato notes at the beginning which you can pull off in the piano roll, and then after that it's pretty easy to replicate.
I hope this helps