Short answer
Rockets become better when splash damages more than the first target. If splash is wasted, cheaper direct methods may win. If splash opens several pieces or speeds up pressure, rockets can justify higher sulfur.
| Situation | Rocket value |
|---|---|
| Single isolated door | Often low value. |
| Wall plus nearby deployables | Potentially high value. |
| Grouped doors or splashable path | High value if aimed well. |
| Online raid pressure | Speed may matter more than sulfur. |