There are two categories of rewards in Last Stand:

Wave completion
The first type of reward is based on the number of waves that you completed in battle. You earn these after each Last Stand attempt.

The second type is based on the position or percentile that your reach in the leaderboard. The better your position/percentile on the leaderboard, the higher the rewards. These rewards will be distributed at the end of every Last Stand cycle (every week).

Overall, rewards include Hero, Survivor, and Support tokens; Reroll and Reinforcement tokens, Radios, Tools, Badge components and fragments. The reward structure may change as the game mode is further developed.