Got some marines that I would like to give some purpose to. I have always liked Black Templars. I know the codex is old, stuff is overpriced, under powered, yadda-yadda-yadda. Despite this, I am toying with the list below. I think it would just be fun to play and see the reactions from my opponents. I'm not listing all the wargear for the sake of simplicity and granted I don't have a lot of points to spare on wargear anyway. I think you'll get the idea. It rounds out to 2000 pts.
Reclusiarch Chaplain (bolt pistol and what he normally comes with)
Emperors Champion (all units get a 5+ save vs psychic and a free d6" move at game start)
5 Marines with Land Raider Crusader (w/Multimelta)
5 Marines with Land Raider Crusader (w/Multimelta)
5 Marines with Land Raider Crusader (w/Multimelta)
Land Raider
Land Raider
Land Raider
Good mix of anti-armor and anti-infantry and with Machine Spirit being upgraded to be like all the newer chapters (BS4 and can always fire), it should cover all the bases. Being immune to everything under S8 is mighty attractive. Not really a list that plows forward and disgorges troops for grand melees. General strategy would be a more defensive posture, hanging back initially getting rid of opposing mech and then tank shocking and moving at cruising speed until game end - rolling onto objectives to control or contest.
I can always round out the list to be more "traditional" down the road but I'm thinking about starting with this and see how much mileage I can get out of it. Whatcha think? How would this do against the current armies?