One suggestion I've seen on here is to make a special reward (e.g. a module) progressively easier to obtain based on the tier reached. Something like this maybe:
Tier 1: only the top 10 commanders get it.
Tier 2: Top 10% get it.
Tier 3: Top 25% get it.
Tier 4: Top 50% get it.
Tier 5: Top 75% get it.
Tier 6: all participants get it.
Combined with some sort of additional incentive for those who come in higher up the table, like one extra toy for every 2 ranks above the minimum needed. So at Tier 6, the top 50% get two, and the top 10% get three.
That's somewhat close to how the latest CG worked out anyhow.
That is an intriguingly good idea!
Whether
extra rewards start appearing due to goal tier or are simply present regardless, if those are based on percentile then I would still prefer that those have little or no functional impact; ideally paints, kits or colours, but conceivably a low-consequence module such as the double-engineered Rail Guns (long back from opposing the NMLA, I think; they are Long Range and High Capacity, so they use a
lot of power!).
The expanding percentile for an impactful module is
very good though, and I wonder numerically how it would affect the goal were it entirely continuous. For example, cast aside the official tiers and suppose the wider total is at 35%, thus the top 35% are eligible provisionally. Fundamentally, if the 36th percentile acts to elevate themselves to reach 35th, by construction that extra total progress is likely to move the entire goal to 36%, preserving the reward for anyone from the previous 35th now displaced into 36th. Reintroducing the tiers would cause some displacement activity in the continua between thresholds, although reaching a new tier would resolve that portion of competition, and that discrete version would be easier for everyone to understand and easier to define a non-final tier for the top 100% reward.
As a footnote, the benefactor faction may still want to see a modest minimum contribution at the top 100% reward tier—100 tons, for example—just so that getting a quite powerful reward does not become quite as trivial as delivering one ton then flying away. The expanding tier structure is an excellent idea though!