In this hypothetical universe, where the speed of light is proportional to the local gravitational field strength, the journey of a laser pulse sent from a region of very weak gravity towards a massive black hole would be quite different from what we observe in our universe.

**Speed of Light:**
As the laser pulse travels from a region of weak gravity toward the black hole, it traverses areas where the gravitational field strength increases. Consequently, the speed of light increases as the gravitational field strength grows. Near the black hole, where gravity is extremely strong, the speed of light would be significantly faster than in regions with weaker gravity.

**Frequency of Light:**
The frequency of the laser pulse would also be affected by this varying speed of light. As it approaches the black hole, the increase in the speed of light could lead to a shift in frequency. If we assume that energy is conserved and the pulse's energy doesn’t change during transit, then a higher speed of light in stronger gravitational fields might imply that the frequency increases to maintain energy conservation, leading to a blue shift. However, this depends on how such a universe treats energy conservation in this context.

**Trajectory of Light:**
The trajectory of the laser pulse would be affected by the gravitational field, as happens in our universe’s treatment of spacetime curvature according to general relativity. The laser pulse would follow a curvilinear path as it approaches the black hole, bending more sharply toward the massive object due to the intense gravitational pull. This is analogous to gravitational lensing in our universe but could be more pronounced depending on how gravity influences light's speed in this hypothetical universe.

Overall, in this hypothetical universe, as the laser pulse approaches the black hole, it travels faster, experiences a frequency shift (likely towards higher frequencies), and follows a curved trajectory due to the increasing gravitational influence. These effects combine to create a journey quite distinct from what a laser pulse would undergo in our universe.