Use your unique Referral link to increase Tenno forces. A friend is considered a recruit once they have successfully completed 10 UNIQUE missions. The more Ninjas you recruit, the higher the reward. Go forth, good Tenno – recruit and be rewarded! 5 Recruits earns you 2 Weapon Slots 10 Recruits earns you a Warframe slot 15 Recruits earns you the Rare Mod - Firestorm 20 Recruits earns you the Rare Mod - Self-Destruct 25 Recruits earns you the Rare Mod - Undying Will 25+ Recruits the Rare Mods repeat and stack with every 5 recruits