The type of irony that occurred in the story, "The Sniper" is situational irony. In the story, it's use was to put suspense in the reader's point of view, as it did. The effect it had on the reader was how they would react after the event happened. For example, when the sniper went to go identify who he shot afterwards, the reader could have figured it was someone he knew. Turns out after he dove from firing shots, he found out that it was in fact his brother, which fit the situation for the reader, and affected how they would take that.
