for the challenge mode i found it easiest (after 3 tries no less) to upgrade the damage until 9 (this will kill suicide fingers in 2 hits, fully upgraded still kills them in 2) hits) then use the rest in ROF (rate of...) then just try capturing the flags by standing on them for as long as you can then run to another and dont forget you have dynamite for when u see a good number chasing you in a tight group.
the levels dont follow any scripts, if you try the same level 10 times, chances are that every try the enemy will use different units in different places
the damage of units seems random at best, also units that are said to be strong vs entrenched arent exactly strong vs entrenched, they arent strong against anything. and why do germans get to have lots of units entrenched and i only get 1 group?
this game is a bit too fast for my liking, by the time ive takled im punting the ball to hell and i have a glance at the map, look back at my player and ive lost possesion still is a good game but can't beat div 2
for an easy win of the 5th cave just use all ranged units: witches, succubus, tanks, archers, mermaids and i used the goblins but i guess u could use any other units. just keep the horde at bay with the goblins and your hero then charge. the magic users should keep the goblin from reaching you and use any spells to keep shit from getting out of hand and u should win easily
Cheers BzAli!! He posted this design for SA4: http://i25.tinypic.com/282pbf7.jpg I managed it in 19:31 but it was much quicker than my first attempts using a long maze