Have all of these (except the modded M6, only have a stock one) so ask away if you have questions. You might also want to try a skyray kung (skyray king clone), you can find them for around $25-30, from china, and in terms of lumens/$ they are impossible to beat. For work in a camp... given my own long past experience, I'd go with the X40vn, due to the simple UI, and the ability to charge the batteries in the light. Either that or the MX25L3.