Ok this is my first Templar list and i could use some help

. Im very new to the hobby.... like i haven't ever played a game new. I'm not really trying to make this list super competitive and from what everyone at my local store is telling me if i did i should of gone with someone other than templar, but what can i say, I like the fluff. I want to go somewhat Black Tide on this list just because it sounds fun to play so here's the list.
HQ
-Emperor's Champion w/ accept any challenge = 140 points
-Master of sanctity w/ Bolt Pistol = 111
-Marshal w/ Power Weapon and Bolt Pistol = 96
Troops
-Crusader Squad 1 (10 initiate, 8 Neo) w/
CCW and Bolt Pistols, Power fist and Flamer = 261
-Crusader Squad 2 (10 initiate, 8 Neo) w/
CCW and Bolt Pistols, Power weapon and Flamer = 256
-Crusader Squad 3 (10 initiate, 8 Neo) w/
CCW and Bolt Pistols, Power weapon and melta = 260
Heavy Support
-Pred Destructor w/ las sponsons and extra armor = 130
-Pred Destructor w/ las sponsons and extra armor = 130
-Pred Destructor w/ Heavy Bolter sponsons and extra armor= 115
TOTAL = 1499
The idea is to push froward in a column with preds leading the way and popping any tanks or transports followed by my crusaders in close proximity to one another with
HQs attached to each squad. A crusader squad breaks off for a objective if thats the game but in Kill Points they just stay together and fight a one 57 man unit, smashing face as one if you will.
Will this be competitive at all? Is there enough
AP?........
i'm new