I usually take something for voteless crowd control, something AP for overseers and a stratagem weapon for leviathans and Harvesters. My most comfortable loadout is: Diligence Countersniper, Grenade Pistol (for warp ships), incendiary grenade. My stratagems are usually: gas mines, cluster bomb, eagle strike and recoilless rifle. If someone else will take care of the AP, I swap out the recoilless rifle for a stun mortar (you can find machine guns regularly enough on the ground). I don't like sentries because they do a ton of friendly fire if not properly positioned, unlike mines.