Add buffs to emotes

I'm not sure you can find a way to fit this in with the lore but I think it would add another element to battles if emotes could grant Buffs to your character. 

For example, shouting "For the Emperor" could grant a 10% damage reduction for 30 seconds. For balance you'd have to use a global emote cool down, let's say 90 seconds. This would stop any spamming of buffs and mean you'd have to use them tactically. The buff would also show in the feed so your brothers know your strategy. 
I'm not sure how you would tie this in with existing emotes but my first thought is that you always allow emotes but the buff is only applied if your emote "ability" is ready.