Funny how experienced Support (medic) guys seem to be really hard to come by.
I run a team of six, without any Heavy class.
Two Snipers with squad sight
Two Assaults with arc throwers
Two Support with medic kits and alien grenades (deep pockets)
Once you have plasma weapons you no longer need the damage dealing ability of the Heavy. The second sniper is too useful.
It's not about dying for your country...
...It's about helping the other guy die for his.