Techniques are disclosed for multiplayer team balancing in a virtual environment. The ion transport membrane system may be utilized in a gas separation device to recover oxygen from an oxygen-containing gas or as an oxidation reactor to oxidize compounds in a feed gas stream by oxygen permeated through the mixed metal oxide ceramic material of the membrane modules. Devices including at least one expandable member and at least one buoyancy member are provided. The first light guide sections are provided correspondingly with first light sources and the second light guide sections are provided correspondingly with second light source. The method further includes determining, via the data processing circuitry, a second CoAP segment size for the data transmissions based at least in part upon the error rate metrics.