Just to clarify, yes Gladiator mods that are on your warframe still apply to abilities. only the ones on weapons were disabled.
I happened to come across a couple of promo codes that might interest people (last checked 16/11/2017 please inform me if any are broken so I can remove them):
Heatsword Orokin Catalyst slot: FREESWORD
Feel free to come and play warframe https://www.warframe.com/signup?referrerId=566d38c13ade7fc5727b2442
Appears on these pages
Sacrificial Steel is the Umbra variant of True Steel, increasing melee critical chance and...
Voicelines Using Warcry Using Paralysis