Cruiser captains should always be wearing some eye piece. However, Walker didn't have that during mission 3 and 4. This has now been added. Also, there is one moment during mission 11 where Walker can be seen flying a Defender. Here he should be wearing a helmet, but he wasn't. This has been added. This commit also replaces the comm_ge_generic1 (Pirate) helmets with comm_ge_generic2 (Liberty) helmets, and also the uniforms li_scrote_body to li_male_elite_body. The former Pirate helmets and LSF uniforms were incorrect because they were worn by Liberty Navy pilots.
When you attack the Navy squad after they kill Brandon Rowlett, you'll see the leader comming without a helmet. However, comming pilots should always have a helmet if they are in space. Hence he's been given a helmet now.
