Most modern tactical radio systems are vended with a built-in router, which manages traffic in the radio network and to other connected networks. In commercial civilian systems, however, routers are traditionally purchased separately. We describe the advantages and disadvantages of these alternatives, both for the manufacturers of the radio and for the users. For large tactical mobile multi-hop networks, the main advantage of a built-in router is that the routing can be designed for the radio network. This is important because standard protocols such as OSPF causes a large overhead in tactical mobile radio networks with many nodes. In addition, it is easier to specify service requirements in procurement of radio systems with a built-in router. A major advantage of radios without a built-in router is that network administrators can choose router solutions that work well with the other routers and that radio manufacturers do not have to be involved in upgrades of protocols in layer three. The risk of compatibility problems and erroneous routes is also lower. An important aspect of analysing routing strategies, is how the networks are used. To perform a more detailed analysis, good scenarios are needed at the brigade level.