As an AI text-based model, I can provide you with a basic structure for an HTML game implementation that includes JavaScript. However, please note that implementing a complete FPS multiplayer game with pictograms and smartphone operation is beyond the scope of a single HTML file. It requires a more complex development environment, back-end server, and extensive coding expertise.
However, here's a simplified example of how you can structure a basic HTML game using JavaScript:
Please keep in mind that this code provides a basic structure and starting point for a game. Implementing a full-fledged FPS multiplayer game requires much more complex code, networking functionality, and graphical assets.