Use the pillars on top of the building to aim.

Nade Time till goes off : 6 seconds
Smoke fade: 24 seconds after throw

Nade Ranking (stars are rated as 5 is the worst and 0 is the best, so the more stars the more challenge/time/difficulty/risk)

Setup Time: ★★☆☆☆ (approx. 5 seconds)
Practice till Flawless execute: ★☆☆☆☆ (approx. 2-3 attempts till you can hit it regularly)
Cost of Failure: ☆☆☆☆☆
Throw Difficulty: ★☆☆☆☆ (incredibly easy)

Nade Overall Rating: ★First Timer★
|| First Timer- Someone just starting to throw their first nades ||