Emergency responses, such as firefighting, take place in extremely hazardous environments where visibility and communication are often extremely poor. Spatial navigation, imaging, and communication interfaces are critical in first response scenarios where common perceptual channels, like visual and auditory, are reduced or unavailable. See-through interfaces are also valuable in advanced simulation training to bring physical touch into the immersive professional field training. Extreme Reality (EXR) is to superimpose extreme situations and live sensory data to the physical scene. In this study, we tested haptic helmet interface and thermographic helmet interface within the simulated smoke environment. Our multimodal EXR interfaces show their potential in real-time operation and training with zero visibility. We also found that the usability of the interfaces can be measured by navigation time, clarity, and reaction time. The thermography can be optimized by highlighting contours.