[quote]I mean there are cloaks in halo and it wasn't really a huge deal[/quote] Speak for yourself, a lot of people HATED the armor abilities in Halo. That's why Reach wasn't as popular, and don't even get me started on the disaster that is Halo 4.

[quote]I wonder how they will balance out the invisibility for blade dancers because I can already see it becoming a major problem with stalker in pvp. People would just be sitting crouched in corners and when people walk by immediately throwing their grenades and killing the person before they even have a chance.[/quote] Pretty sure I read a bungie tip about the radar in that even if cloaked, you will show on radar. Also, I would guess the visible shimmer like the vandals would be what the cloak would look like.

With the blade dancer focus you have extremely low health and regen so if you're spotted you're probably going to die.