No.

Do I need to start a new game?

Just FYI, I got the RAGE Suit quite late in this campaign, already having unlocked Heavy Weapons.

When I made the Suit (or upgraded it, it was a few days ago this happened) I got another message saying Heavy Weapons had been unlocked.

@Sines
Well I specifically made it because I didn't get Experimental Powered Weapons until I built a WAR Suit, and it felt kind of arbitrary. It turns out that the DLC already adds these as alternate requirements for their respective projects so I think maybe the one for EPW is bugged.

It would explain why I didn't have to mess with the original requirements for them like I thought I would have to in order to get this to work.

I don't have this mod, but I got access to Experimental Heavy Weapons when I built the RAGE Suit. Haven't tried it for the RAGE Armor, though.

50 seems a bit much, i'd max out at 12, like the old jetpack armors. ridiculously overpowered on a melee-centric mod class like the Samurai....also great too though. ADVENT Sniper a third of the map away on a roof behind high cover: "hah, stupid XCOM!" *hears jetflare behind him seconds before being sliced in half.*

@Arkhangel I thought of the same but you can edit the shadowfall skill and the icarus jump in the ini file. I changed mine so my soldier can use like 50 jumps in one mission and the shadowfall is useable repeatedly too. I just have problems to find the Rage armor and viper king suit skills :I

Try the Uniforms mod. It has a bug/feature where if you create a uniform in one set of armour and then assign it to a soldier wearing another set it overwrites the appearance without overwriting the stats. I use the Kevlar appearance for T2 in this way (T1 is Resistance Warrior).

@Arkangel
I'm just waiting for something that lets people use the other armor appearance mods for it and the other Hunters armors.

now if they'd only make a mod that makes the Rage armor's melee usable repeatedly.