Could some kind soul please tell me how to grab enemies in Crysis 3?

I have searched and searched and cannot find any info out there. No instructions with the game either in the digital manual or tutorial. No clues in control setup.

Thanks in advance for your help.

Sorry, forgot to say this is for SP of course.

F when touching enemy (no homo)

E does it for me. melle button.

Thanks for the replies guys, much appreciated. I'm afraid I'm still a bit baffled though.

When cloaked and approaching from behind, I get a prompt to stealth kill with the melee button. If I approach from the front, melee just punches the enemy in the face (or nuts if crouched). Cannot get the grab to happen at all. Do you have to be in armour mode first or something like that? Double tap the button or something? Still lost I'm afraid...

You can't grab enemies while cloaked.

That might explain it I guess. I thought I remembered being able to grab while cloaked in previous versions. I'll go try again.

Thanks for your help.