Specialized with Killstreaker
Even though the title of this item says 'Profesisonal Killstreak', internally, this item has a Specialized Killstreak tier attached.
This can be viewed with the Steam API, an attribute '2025 - killstreak tier' has a value of 2, which is a Specialized Killstreak kit.
Professional Killstreak Direct Hit
Team Fortress 2 Level 1 Rocket Launcher
Killstreaker: Cerebral Discharge
Sheen: Deadly Daffodil
Killstreaks Active
+25% damage bonus
+80% projectile speed
Mini-crits targets launched airborne by explosions, grapple hooks or rocket packs
-70% explosion radius