Lore wise it's the perfect opportunity. Especially since Amanda Holiday has a Fallen assistant. Gameplay wise, why not? 1: It wouldn't break anything. Pikes are already obtainable in various activities and it's fine (the main problem with this being you can't reliably get a pike back. Plus the Fallen aren't on every destination). 2: People have wanted Sparrows with guns for a long time. Pikes would do this easily. 3: It wouldn't really invalidate Sparrows because the 2 vehicles feel different (at least they do imo). I think they're a different speed too (although I'm not 100% sure. Either way Pikes could be made 140 speed as a tradeoff to having guns)