In Spy (2015), Sergio De Luca makes several attempts at the life of Rayna. Why does he want to do this?
Rayna is the only person who knows the location of the nuke. De Luca needs Rayna to deliver the bomb to Solsa Dudaev. Therefore, killing Rayna before this transaction doesn't make sense to me.
In fact, we learn later that De Luca needs Rayna to show Solsa and himself where the bomb is so that he can kill both, take Solsa's money and Rayna's bomb, and sell the latter to a higher bidder. A Rayna that is dead before the Solsa's meeting will ruin this plan.