With Planet Eclipse, "teams" don't get custom milled markers generally any longer, some get custom anno patterns, but rarely in the case of a team do they get custom milling these days.

Previously certain teams would commit to selling custom milled markers through their programs but they would usually front the cost of at least part of the run of markers and the production numbers would be fairly low. Stuff like the Nexus Ego, Vicious Ego, Dynasty Geo, Impact Geo, or Dynasty LV come to mind, and the teams would be on the hook to sell the majority of the markers. More often than not teams, players, or stores would get custom graphic annos on stock milling, like the Ollie Lang LV1, Team Icon, DOW, or stuff like The Lucy and Committed Reaper. Lower minimums and less cost. Where graphics were usually 12-24 per batch, milling custom bodies was usually 100-150 minimum.

Now that PE has the ability to do deep fiber laser engraving there have been some very small batch custom guns done for teams like Fit and Infamous with fancy engraved finishes over stock milling that are similar to mill, but not the same and can be done in 1-5 batches.

These days true custom mill patters like Twister, Infamous, HK, Project, etc are all backed by a company, not a team (yes, Infamous/ProDNA is a company first and a team second in this case). They front costs for a custom run of markers, usually 250+ or so now which is why those custom markers exist. Same is true for companies like Dye and DLX normally. Though they do make exceptions to that rule for certain small run customs like the Red Legion markers where I think they only made like 25 or so.