splodge heal 10 shield 10 sight 10
bash HE 10 overload 10 armor pierceing 10
doc sight 10 heal all 10 engine 10
sting stun 10 glue 10 boost 10
shouty missile 10 mortar 10 reload 10
maybe splodg put some points to sight maybe bash put some points to armor pierce maybe doc put some points to engine maybe sting put some points to glue maybe shouty put some points to mortar but those are the basic upgrade paths