Veritas will never publish battlecards in a public forum.
You will need to contact Veritas via your local reseller.
My 2c about battlecards:
They are extremely subjective and most of the time old and not relevant to latest software versions.
Best to do your own investigations - download latest datasheets for the 2 products that you want to compare.
Look at the features of each product. Compare with your own environment - which product fulfills all of your requirements?
Next, look at licensing options - which product has the most comprehensive and flexible licensing options?
You can look at product comparisons on the internet - users share their own experience, what they like and what they dislike about each product.
Just type in Google 'Backup Exec vs Arcserve'.
Look at Gartner and other industry-leading reviews.